z********r
发帖数: 120 | 1 自己换油。
手头有一箱10w-40的，还有3瓶10w-30的。
我车一次要6瓶半，请问可以混用么？
谢谢！ |
A*****s
发帖数: 13748 | 2 这个不行吧。。。
【在 z********r 的大作中提到】
: 自己换油。
: 手头有一箱10w-40的，还有3瓶10w-30的。
: 我车一次要6瓶半，请问可以混用么？
: 谢谢！
|
z********r
发帖数: 120 | 3 为啥不行呢？
补充一下，一些是shell的，另一些是cheveron的
【在 A*****s 的大作中提到】
: 这个不行吧。。。
|
D*****I
发帖数: 8268 | 4 不care的话就加，
care的话就买
up to u
【在 z********r 的大作中提到】
: 为啥不行呢？
: 补充一下，一些是shell的，另一些是cheveron的
|
T******g
发帖数: 21328 | 5 depends on the brand and type |
s*********r
发帖数: 609 | 6 no problem if both synthetic or both regular
【在 z********r 的大作中提到】
: 自己换油。
: 手头有一箱10w-40的，还有3瓶10w-30的。
: 我车一次要6瓶半，请问可以混用么？
: 谢谢！
|
y*******n
发帖数: 10103 | 7 没问题。
都是SM rating的。
是不是合成也没问题。同不同标号也没问题。 |
s*********r
发帖数: 609 | 8 it is ok to mix synthetic with regular?
【在 y*******n 的大作中提到】
: 没问题。
: 都是SM rating的。
: 是不是合成也没问题。同不同标号也没问题。
|
D*****I
发帖数: 8268 | 9 只是机油而已。。。
都用regular了还这么在意干吗。。
【在 s*********r 的大作中提到】
: it is ok to mix synthetic with regular?
|
F*********e
发帖数: 2696 | 10 炼油厂把合成油和矿物油一搅，拿出来卖叫sythetic blend
【在 s*********r 的大作中提到】
: it is ok to mix synthetic with regular?
|
|
|
s*********r
发帖数: 609 | 11 take it easy. i just remember reading somewhere that mixing them can be bad.
i could be wrong.
also fyi, for some car, regular oil is better than synthetic.
【在 D*****I 的大作中提到】
: 只是机油而已。。。
: 都用regular了还这么在意干吗。。
|
s*******e
发帖数: 3042 | 12 没问题，除非turbo要合成油，大多数发动机都很皮实的 |
D*****I
发帖数: 8268 | 13 现在没performance car在用regular了
bad.
【在 s*********r 的大作中提到】
: take it easy. i just remember reading somewhere that mixing them can be bad.
: i could be wrong.
: also fyi, for some car, regular oil is better than synthetic.
|
s*********r
发帖数: 609 | 14 ft. since when using synthetic oil becomes a thing to be proud of?
you don't know every car. nobody does.
【在 D*****I 的大作中提到】
: 现在没performance car在用regular了
:
: bad.
|
D*****I
发帖数: 8268 | 15 没啥proud的
就跟加93汽油一样，需要而已
不要求synthetic oil-》不是现代performance car-》允许得话当然可以用regular
你这问题本身就跟加了87可不可以混加93一样
【在 s*********r 的大作中提到】
: ft. since when using synthetic oil becomes a thing to be proud of?
: you don't know every car. nobody does.
|
s*********r
发帖数: 609 | 16 "就跟加93汽油一样，需要而已"
by the same token, there are cars that are designed to use regular engine
oil. for those cars, synthetic oil is just bad choice.
【在 D*****I 的大作中提到】
: 没啥proud的
: 就跟加93汽油一样，需要而已
: 不要求synthetic oil-》不是现代performance car-》允许得话当然可以用regular
: 你这问题本身就跟加了87可不可以混加93一样
|
y*******n
发帖数: 10103 | 17 不敢苟同。
不存在什么专门为普通机油设计的engine。如果有可以举个例子。
只有专门为合成机油设计的engine。
合成油完全可以替代普通机油。就像蒸馏水可以替代自来水一样。
engine
【在 s*********r 的大作中提到】
: "就跟加93汽油一样，需要而已"
: by the same token, there are cars that are designed to use regular engine
: oil. for those cars, synthetic oil is just bad choice.
|
D*****I
发帖数: 8268 | 18 现在没有了吧
有什么新发动机是design来用regular oil的？
有啥regular oil特性synthetic oil不能满足的？ synthetic稀的可以有0w-20，稠的
也可以有20w60
【在 s*********r 的大作中提到】
: "就跟加93汽油一样，需要而已"
: by the same token, there are cars that are designed to use regular engine
: oil. for those cars, synthetic oil is just bad choice.
|
s*********r
发帖数: 609 | 19 rx8.
【在 y*******n 的大作中提到】
: 不敢苟同。
: 不存在什么专门为普通机油设计的engine。如果有可以举个例子。
: 只有专门为合成机油设计的engine。
: 合成油完全可以替代普通机油。就像蒸馏水可以替代自来水一样。
:
: engine
|
k**0
发帖数: 19737 | |
|
|
y*******n
发帖数: 10103 | 21 Mazda USA doesn't allow the use of synthetic oil for warranty support on
rotary engines, it will void the warranty.
Japan, Europe and all other countries suggest synthetic oil.
Mazda's rotary racing teams run synthetic oil.
我看只是美国dealer的问题。
【在 s*********r 的大作中提到】
: rx8.
|
y*******n
发帖数: 10103 | 22
【在 s*********r 的大作中提到】
: rx8.
|
T******g
发帖数: 21328 | 23 different brands have different additives so you don't want to mix them
which is especially true for synthetic
for the same brands synthetics you don't want to mix them if they have
different formula.
e.g.
you probably can mix M1 high mileage 10w-30 and 10w-40 but you don't want to do that with M1 0w-40 since 0w-40 has its own formula
if you have an old car and using conventional oil, then don't worry about
this too much |
s*********r
发帖数: 609 | 24 well, that is quite some google job just to win an argument...
the reason that mazda u.s. prohibits the use of synthetic oil with rx8 is
that rotary engine is designed in the way that some amount of engine oil
will be injected into engine's combustion chamber to lube the seal. dino oil
will burn off from the combustion so this is a feature by design. however,
with synthetic oil it is a different story. before we go into that, let's
make it clear when i say synthetic, i mean "synthetic oil in u.s
【在 y*******n 的大作中提到】
: Mazda USA doesn't allow the use of synthetic oil for warranty support on
: rotary engines, it will void the warranty.
: Japan, Europe and all other countries suggest synthetic oil.
: Mazda's rotary racing teams run synthetic oil.
: 我看只是美国dealer的问题。
|
y*******n
发帖数: 10103 | 25 美国的synthetic标准比德国日本低。美国的syntheti oil 是groupIII，在德国日本不
能称为
synthetic。 group IV oil （PAOs）在德国日本才能称为全合成。
Group III其实还是dino 精炼，不是严格意义上的称为全合成机油。
简单来说德国日本的全合成机油是比美国的“全合成”更纯正的全合成机油。
如果日本的官方指定机油是真正的全合成，美国的准全合成怎么会不行？
所以你说的东西并不make sense。
除非JDM、USDM、Euro spec的engine就不同。
is
oil
dino oil
however,
let's
than in
if
【在 s*********r 的大作中提到】
: well, that is quite some google job just to win an argument...
: the reason that mazda u.s. prohibits the use of synthetic oil with rx8 is
: that rotary engine is designed in the way that some amount of engine oil
: will be injected into engine's combustion chamber to lube the seal. dino oil
: will burn off from the combustion so this is a feature by design. however,
: with synthetic oil it is a different story. before we go into that, let's
: make it clear when i say synthetic, i mean "synthetic oil in u.s
|
y*******n
发帖数: 10103 | 26 无论怎么样，你还是会mix的。
每次换机油，旧油不可能都流干净。
不过这玩意，个人喜好了，
我个人觉得完全没关系。
want to do that with M1 0w-40 since 0w-40 has its own formula
about
【在 T******g 的大作中提到】
: different brands have different additives so you don't want to mix them
: which is especially true for synthetic
: for the same brands synthetics you don't want to mix them if they have
: different formula.
: e.g.
: you probably can mix M1 high mileage 10w-30 and 10w-40 but you don't want to do that with M1 0w-40 since 0w-40 has its own formula
: if you have an old car and using conventional oil, then don't worry about
: this too much
|
s*********r
发帖数: 609 | 27 1. please state the official source that says Euro/Japan Mazda "recommend" synthetic oil for rx8, some random words from some guy on some forum does not really count.
2. the picture you googled shows "full synthetic for renesis", maybe it is a special synthetic oil designed for rotary engine and burns off without residue, i don't know. but it is not really the synthetic oil we are talking about in our context.
simple fact is: synthetic oil has higher burning point than dino, so it is harder to b
【在 y*******n 的大作中提到】
: 美国的synthetic标准比德国日本低。美国的syntheti oil 是groupIII，在德国日本不
: 能称为
: synthetic。 group IV oil （PAOs）在德国日本才能称为全合成。
: Group III其实还是dino 精炼，不是严格意义上的称为全合成机油。
: 简单来说德国日本的全合成机油是比美国的“全合成”更纯正的全合成机油。
: 如果日本的官方指定机油是真正的全合成，美国的准全合成怎么会不行？
: 所以你说的东西并不make sense。
: 除非JDM、USDM、Euro spec的engine就不同。
:
: is
|
w******x
发帖数: 4396 | 28 0-20 and 0-30 is recommended for all operating temperatures for rx8 by mazda
.co.jp. i'm pretty sure 0-weight doesn't even exist in dino form.
synthetic oil for rx8, some random words from some guy on some forum does
not really count.
a special synthetic oil designed for rotary engine and burns off without
residue, i don't know. but it is not really the synthetic oil we are talking
about in our context.
harder to burn off, so it is easier to leave residue in your rotary engine.
no good.
found a
【在 s*********r 的大作中提到】
: 1. please state the official source that says Euro/Japan Mazda "recommend" synthetic oil for rx8, some random words from some guy on some forum does not really count.
: 2. the picture you googled shows "full synthetic for renesis", maybe it is a special synthetic oil designed for rotary engine and burns off without residue, i don't know. but it is not really the synthetic oil we are talking about in our context.
: simple fact is: synthetic oil has higher burning point than dino, so it is harder to b
|
y*******n
发帖数: 10103 | 29 good point。
mazda
does
without
talking
engine.
in an
【在 w******x 的大作中提到】
: 0-20 and 0-30 is recommended for all operating temperatures for rx8 by mazda
: .co.jp. i'm pretty sure 0-weight doesn't even exist in dino form.
:
: synthetic oil for rx8, some random words from some guy on some forum does
: not really count.
: a special synthetic oil designed for rotary engine and burns off without
: residue, i don't know. but it is not really the synthetic oil we are talking
: about in our context.
: harder to burn off, so it is easier to leave residue in your rotary engine.
: no good.
|
s*********r
发帖数: 609 | 30 please specify where they recommend 0w20/0w30, the only thing i can found is
http://www.mazda.co.jp/service/ownersmanual/rx-8/70201.html
the only indication from the graph is 0w20/0w30 can be used in cold weather,
and the ATTENTION below still clearly says that only special synthetic oil
developed for renssis engine may be used. I would not say this is a
recommendation of synthetic oil from mazda japan.
mazda
talking
engine.
an
【在 w******x 的大作中提到】
: 0-20 and 0-30 is recommended for all operating temperatures for rx8 by mazda
: .co.jp. i'm pretty sure 0-weight doesn't even exist in dino form.
:
: synthetic oil for rx8, some random words from some guy on some forum does
: not really count.
: a special synthetic oil designed for rotary engine and burns off without
: residue, i don't know. but it is not really the synthetic oil we are talking
: about in our context.
: harder to burn off, so it is easier to leave residue in your rotary engine.
: no good.
|
|
|
T******g
发帖数: 21328 | 31 such small amount shouldn't count
in porsche owner's manual it specifically says "don't mix brands" in one
oil change but you can use different brands of oil in different oil changes.
porsche only uses synthetic in 0w-40 or 5w-40 weights. it needs the low
weight of oil during startup because of its flat-six engine design.
【在 y*******n 的大作中提到】
: 无论怎么样，你还是会mix的。
: 每次换机油，旧油不可能都流干净。
: 不过这玩意，个人喜好了，
: 我个人觉得完全没关系。
:
: want to do that with M1 0w-40 since 0w-40 has its own formula
: about
|
w******x
发帖数: 4396 | 32 well, you do realize that E90 owner's manual says "Use only approved BMW
High Performance Synthetic Oil."? do you know anyone who actually follow
that sentence to the word? similar statements are all over the place
regardless the brand.
also notice that 0-20 and 0-30 are the only grades that span the entire
temperature range.
is
weather,
oil
【在 s*********r 的大作中提到】
: please specify where they recommend 0w20/0w30, the only thing i can found is
: http://www.mazda.co.jp/service/ownersmanual/rx-8/70201.html
: the only indication from the graph is 0w20/0w30 can be used in cold weather,
: and the ATTENTION below still clearly says that only special synthetic oil
: developed for renssis engine may be used. I would not say this is a
: recommendation of synthetic oil from mazda japan.
:
: mazda
: talking
: engine.
|
s*********r
发帖数: 609 | 33 Please understand that my statement regarding synthetic oil and dino oil
applies only to rotary engine, and please do not assume that whatever works
with piston engine is universally true for rotary, more generally, please do
not assume whatever works for your car will work in another car.
For RX8, the manual/oil cap says use 5W20 non-synthetic only. For the 5W20
thing, it is agreed among RX8 owners that it is there to pass U.S emission
standard, and it is perfectly OK to use other grades, as lo
【在 w******x 的大作中提到】
: well, you do realize that E90 owner's manual says "Use only approved BMW
: High Performance Synthetic Oil."? do you know anyone who actually follow
: that sentence to the word? similar statements are all over the place
: regardless the brand.
: also notice that 0-20 and 0-30 are the only grades that span the entire
: temperature range.
:
: is
: weather,
: oil
|
D*****I
发帖数: 8268 | 34 如果你现在开Rx8,那么问的时候请说明
over
works
do
completely
【在 s*********r 的大作中提到】
: Please understand that my statement regarding synthetic oil and dino oil
: applies only to rotary engine, and please do not assume that whatever works
: with piston engine is universally true for rotary, more generally, please do
: not assume whatever works for your car will work in another car.
: For RX8, the manual/oil cap says use 5W20 non-synthetic only. For the 5W20
: thing, it is agreed among RX8 owners that it is there to pass U.S emission
: standard, and it is perfectly OK to use other grades, as lo
|
s*********r
发帖数: 609 | 35 when i asked to double chek if "it is ok to mix synthetic with regular? ", i
was apparently referring to regular car, not rx8.
but you jump out so condescending and reply 都用regular了还这么在意干吗。。,
that is why i brought up the topic that synthetic oil is not the best
choice for all cars...well, you know what happened next
【在 D*****I 的大作中提到】
: 如果你现在开Rx8,那么问的时候请说明
: over
:
: works
: do
: completely
|
w******x
发帖数: 4396 | 36 well, you assume too much about what i assumed when i post. there are lots
of voices FOR using synthetic oil in rotaries, in case you were so deaf as
not to hear them. e.g.
http://www.rotaryinsider.com/faq-tac40/rx8-synthetic-oil-gap46.htm
works
do
completely
【在 s*********r 的大作中提到】
: Please understand that my statement regarding synthetic oil and dino oil
: applies only to rotary engine, and please do not assume that whatever works
: with piston engine is universally true for rotary, more generally, please do
: not assume whatever works for your car will work in another car.
: For RX8, the manual/oil cap says use 5W20 non-synthetic only. For the 5W20
: thing, it is agreed among RX8 owners that it is there to pass U.S emission
: standard, and it is perfectly OK to use other grades, as lo
|
s*********r
发帖数: 609 | 37 the first paragraph on your link is completely wrong.
“The RX-8 owner's manual says to use 5w20 oil that meets API and ILSAC GF-3
specs. It doesn't specify oil type.”
the manual clearly states:
"WARNING: Do not use either synthetic or semisynthetic motor oil."
Just go get a manual and read, don't assume everything you randomly come
across on internet is true.
Also, your link says:
"Mazda does not prohibit synthetics from being used in the RENESIS engine"
This is miserably wrong as well, Mazda wi
【在 w******x 的大作中提到】
: well, you assume too much about what i assumed when i post. there are lots
: of voices FOR using synthetic oil in rotaries, in case you were so deaf as
: not to hear them. e.g.
: http://www.rotaryinsider.com/faq-tac40/rx8-synthetic-oil-gap46.htm
:
: works
: do
: completely
|
w******x
发帖数: 4396 | 38 actually the link isn't wrong. if you check out the owner's manual from '04,
the manual doesn't specify against synthetic oil use. go ahead, check it.
see? you are assuming way too much about what you know being correct.
-3
【在 s*********r 的大作中提到】
: the first paragraph on your link is completely wrong.
: “The RX-8 owner's manual says to use 5w20 oil that meets API and ILSAC GF-3
: specs. It doesn't specify oil type.”
: the manual clearly states:
: "WARNING: Do not use either synthetic or semisynthetic motor oil."
: Just go get a manual and read, don't assume everything you randomly come
: across on internet is true.
: Also, your link says:
: "Mazda does not prohibit synthetics from being used in the RENESIS engine"
: This is miserably wrong as well, Mazda wi
|
s*********r
发帖数: 609 | 39 geez, this is your counter argument? really?
i don't have 04, i have a 07, so here is a copy of manual for 07 model,
check section 8-12.
http://www.mazdausa.com/MusaWeb/pdf/manuals/2007_RX8_OM.pdf
so, we have:
1. the manual for 04 rx8 (first year model) that did not mention synthetic,
but certainly did not say it is OK to use it either
2. the manual for 07 rx8 that clearly states do NOT use synthetic or
semisynthetic oil
in fact, i am pretty sure, the manual for all later-year models specificall
【在 w******x 的大作中提到】
: actually the link isn't wrong. if you check out the owner's manual from '04,
: the manual doesn't specify against synthetic oil use. go ahead, check it.
: see? you are assuming way too much about what you know being correct.
:
: -3
|
y*******n
发帖数: 10103 | 40 我查过了，04年的manual的确没说不让用synthetic，
事情的过程很明显了。说明设计之初mazda就没想到synthetic会导致这么严重的问题，
而后亡羊补牢，但已经搞的众说纷纭，
与其是说它是专为dino oil设计的engine，不如说是mazda一开始就存在设计缺陷。。。
http://www.mazdausa.com/MusaWeb/pdf/manuals/RX8_2004_owners.pdf |
|
|
w******x
发帖数: 4396 | 41 i'd totally use synthetic if i had a rx8. why? because mazda is trying to
sell you its oil and oil companies are trying to do the same--some of them
actually care to back it up with a few numbers.
rotaryinsider's FAQ makes sense, especially in the part where it questions
mazda's claim that synthetics don't burn completely in combustion chamber.
let's get some numbers. assume you top up 1 liter of engine oil per 8000km,
and you drive at 100kph average, let's say you go at an average of 100kph
and
【在 s*********r 的大作中提到】
: geez, this is your counter argument? really?
: i don't have 04, i have a 07, so here is a copy of manual for 07 model,
: check section 8-12.
: http://www.mazdausa.com/MusaWeb/pdf/manuals/2007_RX8_OM.pdf
: so, we have:
: 1. the manual for 04 rx8 (first year model) that did not mention synthetic,
: but certainly did not say it is OK to use it either
: 2. the manual for 07 rx8 that clearly states do NOT use synthetic or
: semisynthetic oil
: in fact, i am pretty sure, the manual for all later-year models specificall
|
s*********r
发帖数: 609 | 42 please make it clear when you are ZZing.
and this one really make a good laugh:
＂
because mazda is trying to sell you its oil and oil companies are trying to
do the same．
＂
if mazda really wants to make money, why doesn't it just say use mazda's
5w20 only? it is not like regular dino oil is any harder to get in auto
parts store than the synthetic. and in fact, the link in your post
http://www.sinwal.com/data/TSBRotary.pdf IS ACTUALLY TRYING TO SELL ITS OWN SYNTHETIC OIL. lol
hontestly, you are n
【在 w******x 的大作中提到】
: i'd totally use synthetic if i had a rx8. why? because mazda is trying to
: sell you its oil and oil companies are trying to do the same--some of them
: actually care to back it up with a few numbers.
: rotaryinsider's FAQ makes sense, especially in the part where it questions
: mazda's claim that synthetics don't burn completely in combustion chamber.
: let's get some numbers. assume you top up 1 liter of engine oil per 8000km,
: and you drive at 100kph average, let's say you go at an average of 100kph
: and
|
s*********r
发帖数: 609 | 43 nobody says rotary is designed for dino oil.
my point is that rotary is desiged to use engine oil to lube its seal,
therefore it is better to use dino oil.
surely it would be great if rotary can use both syntheric and dino, but is
it a flaw by design? i don't see the necessary connection.
。。
【在 y*******n 的大作中提到】
: 我查过了，04年的manual的确没说不让用synthetic，
: 事情的过程很明显了。说明设计之初mazda就没想到synthetic会导致这么严重的问题，
: 而后亡羊补牢，但已经搞的众说纷纭，
: 与其是说它是专为dino oil设计的engine，不如说是mazda一开始就存在设计缺陷。。。
: http://www.mazdausa.com/MusaWeb/pdf/manuals/RX8_2004_owners.pdf
|
w******x
发帖数: 4396 | 44 of course amsoil is trying to sell its oil--i said that in the very
beginning of the post. can't you read? numbers are numbers nontheless, so
only discredit the numbers with evidence, and you gave none.
you want a concrete argument and you got it, so where's yours? explain with
reason why renesis won't take synthetic in front of the numbers provided.
these are not corner cases--these are the most common oils you can buy off
the shelf, the ones you referred to as "normal synthetic that you get fr
【在 s*********r 的大作中提到】
: please make it clear when you are ZZing.
: and this one really make a good laugh:
: ＂
: because mazda is trying to sell you its oil and oil companies are trying to
: do the same．
: ＂
: if mazda really wants to make money, why doesn't it just say use mazda's
: 5w20 only? it is not like regular dino oil is any harder to get in auto
: parts store than the synthetic. and in fact, the link in your post
: http://www.sinwal.com/data/TSBRotary.pdf IS ACTUALLY TRYING TO SELL ITS OWN SYNTHETIC OIL. lol
|
w******x
发帖数: 4396 | 45 oh, btw, that was not ZZ. i wrote the whole damn thing. now it's your turn.
【在 s*********r 的大作中提到】
: please make it clear when you are ZZing.
: and this one really make a good laugh:
: ＂
: because mazda is trying to sell you its oil and oil companies are trying to
: do the same．
: ＂
: if mazda really wants to make money, why doesn't it just say use mazda's
: 5w20 only? it is not like regular dino oil is any harder to get in auto
: parts store than the synthetic. and in fact, the link in your post
: http://www.sinwal.com/data/TSBRotary.pdf IS ACTUALLY TRYING TO SELL ITS OWN SYNTHETIC OIL. lol
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D*****I
发帖数: 8268 | 46 ft...engine oil都有seal作用
【在 s*********r 的大作中提到】
: nobody says rotary is designed for dino oil.
: my point is that rotary is desiged to use engine oil to lube its seal,
: therefore it is better to use dino oil.
: surely it would be great if rotary can use both syntheric and dino, but is
: it a flaw by design? i don't see the necessary connection.
:
: 。。
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s*********r
发帖数: 609 | 47 first of all, sorry for saying that you were ZZing...i just read that litter
/km is used in your article, it is just more common to use quart when one is
talking about engine oil and mile when talking about speed. so i think this
must be from some euro forum...my bad.
honestly, i have a lot of doubt regarding the credibility of your pdf
article.
first of all, it is saying that synthetic oil has similar flash point
compared to dino oil. i find this hard to believe. if it is true, what is
the poin
【在 w******x 的大作中提到】
: of course amsoil is trying to sell its oil--i said that in the very
: beginning of the post. can't you read? numbers are numbers nontheless, so
: only discredit the numbers with evidence, and you gave none.
: you want a concrete argument and you got it, so where's yours? explain with
: reason why renesis won't take synthetic in front of the numbers provided.
: these are not corner cases--these are the most common oils you can buy off
: the shelf, the ones you referred to as "normal synthetic that you get fr
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s*********r
发帖数: 609 | 48 engine oil is used to lube the apex seal inside rotary engine. please read.
【在 D*****I 的大作中提到】
: ft...engine oil都有seal作用
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w******x
发帖数: 4396 | 49 good, now we are talking rationally.
fist things first, those flash point numbers were available from official
sources. for example, pennzoil:
http://pennzoil.com/documents/Platinum%20Full%20Synthetic%20Motor%20Oil.pdf
so you can go ahead and verify all numbers. personally, i wouldn't bother.
amsoil simply compiled what they can get publicly. i don't think the numbers
present in the amsoil TSB are at question at all.
i use metric units because that's much easier for calculation. 1 quart is
sligh
【在 s*********r 的大作中提到】
: first of all, sorry for saying that you were ZZing...i just read that litter
: /km is used in your article, it is just more common to use quart when one is
: talking about engine oil and mile when talking about speed. so i think this
: must be from some euro forum...my bad.
: honestly, i have a lot of doubt regarding the credibility of your pdf
: article.
: first of all, it is saying that synthetic oil has similar flash point
: compared to dino oil. i find this hard to believe. if it is true, what is
: the poin
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s*********r
发帖数: 609 | 50 The TSB is entitled: “Using AMSOIL ASM and XLM in the Mazda RENESIS Rotary
Engine”, and they don’t know that Mazda’s prohibiting usage of synthetic
in RX8? Also, at the beginning of the TSB, AMSOIL quoted Mazda Corporation
Engineering bulletin #06010010 dated 10/27/2006, I am sure manual for 2007
rx8 is available at that time. So every Mazda dealer knows synthetic is
prohibited, and almost every RX8 owners knows that, but AMSOIL, who can find
a Mazda engineering bulletin, cannot find a 2007 manu
【在 w******x 的大作中提到】
: good, now we are talking rationally.
: fist things first, those flash point numbers were available from official
: sources. for example, pennzoil:
: http://pennzoil.com/documents/Platinum%20Full%20Synthetic%20Motor%20Oil.pdf
: so you can go ahead and verify all numbers. personally, i wouldn't bother.
: amsoil simply compiled what they can get publicly. i don't think the numbers
: present in the amsoil TSB are at question at all.
: i use metric units because that's much easier for calculation. 1 quart is
: sligh
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w******x
发帖数: 4396 | 51 re: amsoil quoting mazda's stance against synthetic
simple. the 07 owner's manual only says the effect on starting performance,
and nothing on warranty. amsoil is not a mazda dealer.
re: grouping synthetics and dinos
it's pretty apparent to me that they are grouping oils by brand.
re: castrol gtx flash point
i can't find it on castrol's site either. other sources gave me 204C for
flash and 221 for flame.
re: mazda oil type
my guess is amsoil is referring to the dino version, since the TSB was
or
【在 s*********r 的大作中提到】
: The TSB is entitled: “Using AMSOIL ASM and XLM in the Mazda RENESIS Rotary
: Engine”, and they don’t know that Mazda’s prohibiting usage of synthetic
: in RX8? Also, at the beginning of the TSB, AMSOIL quoted Mazda Corporation
: Engineering bulletin #06010010 dated 10/27/2006, I am sure manual for 2007
: rx8 is available at that time. So every Mazda dealer knows synthetic is
: prohibited, and almost every RX8 owners knows that, but AMSOIL, who can find
: a Mazda engineering bulletin, cannot find a 2007 manu
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s*********r
发帖数: 609 | 52 come on, so what do you want mazda to say in a owner's manual? that they
will void your warranty if you use synthetic? which car manufactor will say
something like
don't do evil, or your fragile engine will break and we will void your
warranty?
in a car's manual? that plain WARNING is just not enough for you?
mazda will also void your warranty if you use your rx8 regually on track,
you want them to put that in manul as well?
PLAIN FACT is mazda WILL void your warranty if they have clear evidence
【在 w******x 的大作中提到】
: re: amsoil quoting mazda's stance against synthetic
: simple. the 07 owner's manual only says the effect on starting performance,
: and nothing on warranty. amsoil is not a mazda dealer.
: re: grouping synthetics and dinos
: it's pretty apparent to me that they are grouping oils by brand.
: re: castrol gtx flash point
: i can't find it on castrol's site either. other sources gave me 204C for
: flash and 221 for flame.
: re: mazda oil type
: my guess is amsoil is referring to the dino version, since the TSB was
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w******x
发帖数: 4396 | 53 you don't trust the flash points listed in amsoil TSB, fine. look up the
flash points of common oils in the market, compile your own list, knock
yourself out--and the conclusion remains.
some piston engines burn oil pretty darn close to how much renesis burns.
some turbo engines from vw, for example, a quart per 3000 miles is
considered normal off the show room floor. engines may be different, but it'
s the oil we are talking about here, so DON'T CHANGE THE SUBJECT. engine oil
WILL burn in a co
【在 s*********r 的大作中提到】
: come on, so what do you want mazda to say in a owner's manual? that they
: will void your warranty if you use synthetic? which car manufactor will say
: something like
: don't do evil, or your fragile engine will break and we will void your
: warranty?
: in a car's manual? that plain WARNING is just not enough for you?
: mazda will also void your warranty if you use your rx8 regually on track,
: you want them to put that in manul as well?
: PLAIN FACT is mazda WILL void your warranty if they have clear evidence
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s*********r
发帖数: 609 | 54 like i said, i have verified that most of the data in amsoil TSB is correct,
but some very important data points are incorrect and misleading.
what i really don't trust about amsoil is that they compiled so many obvious
BS/mistakes to convince ppl that it is ok to use their synthetic in renesis.
then you go on and on questioning whether mazda prohibited synthetic oil in
rx8...it is just fact, what is it to argue about?
our topic is whether or not dino oil is easier to burn off completely in
rota
【在 w******x 的大作中提到】
: you don't trust the flash points listed in amsoil TSB, fine. look up the
: flash points of common oils in the market, compile your own list, knock
: yourself out--and the conclusion remains.
: some piston engines burn oil pretty darn close to how much renesis burns.
: some turbo engines from vw, for example, a quart per 3000 miles is
: considered normal off the show room floor. engines may be different, but it'
: s the oil we are talking about here, so DON'T CHANGE THE SUBJECT. engine oil
: WILL burn in a co
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w******x
发帖数: 4396 | 55 maybe you should go read what i wrote again. i only posted the TSB to quote
the numbers therein (see post #41 in this thread--i never once edited my
posts). it was YOU who brought up the question of credibility, pointing at
the mention of mazda's stance on synthetic. seriously, this issue is
irrelevant to engine oil properties. numbers are numbers--even though we
have doubts on a data point or two, the conclusion drawn stands, with no
regard to whether mazda's warranty policy.
re: burn vs comple
【在 s*********r 的大作中提到】
: like i said, i have verified that most of the data in amsoil TSB is correct,
: but some very important data points are incorrect and misleading.
: what i really don't trust about amsoil is that they compiled so many obvious
: BS/mistakes to convince ppl that it is ok to use their synthetic in renesis.
: then you go on and on questioning whether mazda prohibited synthetic oil in
: rx8...it is just fact, what is it to argue about?
: our topic is whether or not dino oil is easier to burn off completely in
: rota
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w******x
发帖数: 4396 | 56 let me rephrase my first paragraph a bit:"...the issue of whether mazda
warranty policy prohibits use of synthetic oils does not change the
properties of those oils. even though we have doubts about a data point or
two, the conclusion drawn from the numbers stands regardless how mazda
thinks of synthetic oils." |
s*********r
发帖数: 609 | 57 i did got back to read your original post. and here it is your conclusion
from TSB
"
so please stop thumping on the owner's manual as scientific evidence and
explain to me, for example, why 35mm^3 of mazda oil would burn completely,
but valvoline synthetic with the same flash point would not.
"
as we have deiscussed before, there is no such thing called "mazda oil" and
we don't know whether it is synthetic or not. yes, we only have dbout about
a data point or two: the incorrect flash point of ca
【在 w******x 的大作中提到】
: maybe you should go read what i wrote again. i only posted the TSB to quote
: the numbers therein (see post #41 in this thread--i never once edited my
: posts). it was YOU who brought up the question of credibility, pointing at
: the mention of mazda's stance on synthetic. seriously, this issue is
: irrelevant to engine oil properties. numbers are numbers--even though we
: have doubts on a data point or two, the conclusion drawn stands, with no
: regard to whether mazda's warranty policy.
: re: burn vs comple
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w******x
发帖数: 4396 | 58 no such thing as mazda oil? then what's this?
http://jaytec-lubricants.com/index.php?main_page=product_info&cPath=1_7_18&products_id=23
even if you can't verify the number on mazda's oil, in place of mazda 5w-20,
same thing can be said with pennzoil conventional (228C) vs pennzoil
platinum (224) /valvoline synpower (221).
as for why mazda decided to not like synthetic (except its own synthe-
renesis), i honestly don't know, because mazda didn't give any reason aside
from "hard starting". i do he
【在 s*********r 的大作中提到】
: i did got back to read your original post. and here it is your conclusion
: from TSB
: "
: so please stop thumping on the owner's manual as scientific evidence and
: explain to me, for example, why 35mm^3 of mazda oil would burn completely,
: but valvoline synthetic with the same flash point would not.
: "
: as we have deiscussed before, there is no such thing called "mazda oil" and
: we don't know whether it is synthetic or not. yes, we only have dbout about
: a data point or two: the incorrect flash point of ca
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