I read up on what bobistheoilguy dot com says. I'm convinced and will see what my current oil pressure is. If I can go lower I'm thinking Red Line 5W20 (he says its a thick 20 grade oil, he recommends it as one of the best synthetic 30 grade oils) for my next change.

Anyone know how I can read the oil pressure at various rpms,with vag-com perhaps?
Also, what is the oil pressure relief point on the 2.7T APB engine, where can I find that info?

 

Are you thinking of running 5W-20 in your 2.7T??? This is so far outside the pale as to be almost incomprehensible; not only is there nothing even remotely as thin as an xW-20 acceptable for your Audi, but as far as I know, there aren't any Red Line oils certified for use in the VW/Audi line either. It's your money and your car, but I'm thinking this is a really bad idea.

 

well, I really think that bob had a good point. If I can check my oil pressure and if its relatively high for the 10psi per 1000rpm figure then I can safely use the redline 5w-20 which is supposedly almost like 5w-30... I know that it sounds and looks crazy, but if the oil pressure is too high, I want it closer to 10psi per 1000rpm...

 

Scratch that, I didn't know they had 0w-20, I'll either decide between 0w-20 or 0w-30 redline.

 

the 0w-30 says:

For use where 5W30 is recommended, especially in colder environments
Suitable for VW/Audi 503.00 and 503.01, as well as Mercedes Benz 229.3 and 229.5
Better flow at extremely cold temperatures compared to 5W30 and 10W30
Recommended for API SN/SM/SL/SJ/SH/SG/CF and ACEA A5/B5

 

Whether the information you're quoting from is from your Owner's Manual or from some other source, it is horribly out of date; 503.00 and 503.01 haven't been used for years now. For your car, there is only one oil standard to worry about at this point in time and it is VW/Audi 502.00; all others are irrelevant.

There are two main categories of oil from your perspective; oils which meet 502.00, and those that don't. Within the 502.00 classification, only the following four oil grades qualify:

• 0W-30 Castrol Syntech (aka German Castrol, an oil which will most likely become unavailable in the near future)
• 0W-40 Mobil 1
• 5W-30 (typically not available in the U.S.)
• 5W-40 (the most commonly available 502.00 oil in the U.S.; made by a number of manufacturers).

FWIW, I've been using Mobil 1 0W-40 since a year or two before it became generally available here in North America, and from reading numerous posts on this board, it seems to be one of the most popular oils here as well.

 

did you read what it says on bobistheoilguy . com ??? thinner oil flows more, creating more lubrication and cooling. In the owners manual it specifys SJ 0w-30, which is an OLD classification, the new oils are SM and SN which is MUCH MUCH better! Ow-40 is what everyone suggested on the audi forum sites but perhaps its just not the right oil to be using if your pressure is too high, I still didn't check my pressure, I gotta find out how with vag-com or I would have to put a pressure guage somewhere... I'm definitely going to check before my next oil change and adjust my oil accordingly. If my pressure is currently close to 10psi per 1000rpm then I have no choice but to continue using 0w-40, but if its higher like say 15+psi per 1000rpm then I'm going down to at leas 0w-30

 

I've been aware of and have communicated with Bob since before he started BITOG.com, and have been a member of his web forum since inception. So? The thing is, there is just as much crap and misinformation on that site as there is everywhere else, even from Bob himself. The only way to be assured of choosing the correct oil for a 1996 or later Audi is to pick one from the list of certified oils which meet Audi's requirement for your car (which at this point is 502.00).

With the above in mind, I sent a letter to AOA and asked them about the correct oil for a W8 Passat I used to frequently service. The reason for the inquiry was the fact that the 503.xx oil specifications (which the W8 required) had been retired; their response (which I can look up and forward to you if you wish) indicated that oil meeting the 502.00 oil specification has superseded 503.xx and is now the correct oil for the W8 and for a number of other engines (one of which I believe was the 2.7T).

Long story short, it's your money and your car, if you choose to run 0W-20 in it, there's nothing any of us can do to dissuade you from your choice. Just be advised; your engine was NOT designed to run with oil anywhere near that light. Remember, "cooling and lubrication" are only two of the many functions oil provides for your engine, and 0W-20 is simply the wrong oil for your application.

 

in the owners manual it clearly says 0w-30, so according to bob 0w-20 is around 10% thinner... Ok fine I wont jump the gun and go straight to 0w-20 but it clearly says 0w-30 in my book. So fine, I'll find a 502 whatever oil that is 0w-30 and try it IF my oil pressure is well above 10psi per 1000rpm... IF the pressure is really close to 10psi per 1000rpm I'll stick to the mobil 1 0w-40, or maybe i'll try another brand just to check it out...

 

If you contact Audi you'll be informed that the 0W-30 requirement is not the primary requirement; said primary requirement for oil selection is oils which are certified 502.00. Simple as that. Oils which meet that stardard are 0W-30 (as far as I know, only Castrol makes a 0W-30 which is certified 502.00), 5W-30, 0W-40, and 5W-40.