Parrothead, why don't you go brush-up on your material before you start posting?
Based on what? I know what the letter says. Have you read it or are you just going by what others have said about it. Anyway, how about if you stop telling me what to do and we stick to talking about oilquote:
Parrothead, why don't you go brush-up on your material before you start posting?
Oil viscosities tend to thin down more in turbos due to the extra heat created, a thicker oil gives greater protection when the engine is run hard.quote:
based on...???
My '96 Audi manual warns explicitely of the use of 5W-30 dino oil and high speed driving and anything but low ambient temps.quote:
I also think the VW dealers created this problem by telling owners any old 5W-30 oil will work fine in that engine, dino or synth.
I think there is a minor cause for concern that VW are recommending a 5WXX oil, and your running a 10WXX oil, and they also mostly recommend a XW40 oil, and your running a XW30 oil, so basically your running an oil that is both to thick, and to thin.quote:
My manual implies 5w-40 is better than 10w-30 but if comparing conventional 5w-40 to synthetic 10w-30, I think most here would agree the latter would protect better.
Just surf on over to the Audiworld forums (the B5 A4 in particular) and do a search. There have been many cases of premature (according to the service interval) TB failures. Actually, it's not the TB that goes, but the tensioner. Depending on the engine and MY, the interval goes from 90-120k miles, IIRC. Common practice among 1.8T A4 owners in the know is a 60k change interval. Still, some have failed prior to 60k miles. It's amazing how many new posters show up and complain that their head just got trashed before the factory-recommended change interval. The tensioner was even redesigned (more beefy) and there is still a problem. Audi is practically negligent in this regard.quote:
That's why I'm looking for a class action suit to join, or other 1.8T owners who have experienced belt failures.
But the manual always said 5W-40 - no? Does M1 10-30 meet the VW 503 and 505 specs listed in the manual? This letter says 502 spec as well. Althought the user experiences of 10W-30 are positive, were they for the 1.8T? The 1.8T engine is very finicky and different grades of oil impact its performance drastically. The 5W-40 is recommended for the 1.8T and that is not to say that a 0W-40/0W-30/5W-30 is not as long as it meets the VW specs.quote:
Originally posted by tai:
RL331, I'm using Mobil 1 10w-30 because the user experiences I've read here has been positive, more so than the 0w-40. Many times folks here say 10w-30 is the most shear stable of the Mobil 1 oils. And before I received the letter from VWoA, 10w-30 synthetic would have met the requirements in my manual, which makes no mention of synthetic vs. conventional, or the 502.00 spec.
My manual implies 5w-40 is better than 10w-30 but if comparing conventional 5w-40 to synthetic 10w-30, I think most here would agree the latter would protect better.
I just did the math and realised that 60k miles is about 100000kms, so I'd certianly agree with that way of thinking, 80000-100000kms is heaps on a timing belt if you want to stay safe.quote:
Common practice among 1.8T A4 owners in the know is a 60k change interval. Still, some have failed prior to 60k miles.
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I think there is a minor cause for concern that VW are recommending a 5WXX oil, and your running a 10WXX oil, and they also mostly recommend a XW40 oil, and your running a XW30 oil, so basically your running an oil that is both to thick, and to thin.
I'm not so sure "any" 10W30 will protect an engine as well, when the engine is designed to run a 5W40 oil?
Where do you guys get this stuff? This thread should be titled "Calling all Noobs".quote:
Oil viscosities tend to thin down more in turbos due to the extra heat created, a thicker oil gives greater protection when the engine is run hard.
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Are we all in agreement that all it takes to maintain warranty in an API oil at mfg intervals?
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No, because my 1.8t manual states a 5k oci. I would not leave any dino oil in this engine for 5k.
I'll have to refresh my memory on what the manual states.
about using a ILSAC GF-3 oil if an oil meeting VW 502.00 is not available. Anway,quote:
I seem to remember it saying something
? The letter I received pretty clearly states to use an oil that meets the VW 502.00 spec. Are there any dino oils that meet that spec?quote:
doesn't this update letter take precedence over the manual
No, it does not seem like you either know what the letter says nor bothered reading my post before answering. I did not ask what your personal preferences are, I pointed out that all that's required is API oil to maintain warranty. Simply "talking about oil" is not the same thing as correctly and knowledgably responding to other members' posts.quote:
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Parrothead, why don't you go brush-up on your material before you start posting?
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Based on what? I know what the letter says . Have you read it or are you just going by what others have said about it. Anyway, how about if you stop telling me what to do and we stick to talking about oil
So then I guess then your suggesting that heat does not effect oil viscosity, and that manufacturers oil recommendations should be ignored?quote:
Where do you guys get this stuff? This thread should be titled "Calling all Noobs".
Dude, in case you haven't heard yet, crack kills. You obviously have not read the letter. The letter CLEARLY states that an oil meeting the VW 502.00 spec is REQUIRED for the 1.8T engine and the extended sludge warranty.quote:
I did not ask what your personal preferences are, I pointed out that all that's required is API oil to maintain warranty.