ilkoUSP

I'm about to do a 50K service on my car. So far I'm looking to do the following:

Fuel Filter
Spark Plugs
Engine Air Filter
Cabin Air Filter
Brake Bleeding
Oil Change
<b>Anything else?</b>

Also, I track my other highly modified, air-cooled car a lot so I have a huge amount of Mobil 1 15W-50 full synthetic oil in my garage. Being that the Audi will be driven in hot conditions this summer, I'm thinking of using the Mobil 1 !15W-50 higher viscosity oil (I use 5W-40 synthetic in the winter). <B>My question is, has anybody used this higher viscosity oil and is it VW approved for the 1.8T engine?</B>

Thanks!

Audi Junkie

So, don't use it in the cold nor expect top mpg. (1.8t NEEDS good cold flow, not really an issue in summer, but you want to warm-up slowly)

Frankly, as an owner of a substantial stash of motor oil, even if I already had it, I would NOT use it in my 1.8t because there are much better options out there. Look at the Mobil 1 HM line, built like a race oil, if that's the target. Other oils offer max mpg/hp/service duty, like German Syntec or M1 0w-40 SS / 5w-40 TDT.

I'd actually mix it down with some M1 5w/10w-30 about 50/50% to get a decent visc.

As far as M1 15w-50, great in appropriate specs, but not when oil temps are low or in an engine with low-tension rings. Older SL version are MUCH better then newer SM and (ugh) Extended Performance 15w-50 (non) Red Cap.

So, mix it or use something else. Mobil ok's mixing grades of Super-Syn.

ilkoUSP

Thank you Audi Junkie, sound logic!

Press

i use m1 0w-40 in both of my cars

Audi Junkie

No problem. Mixing it down with about a half jug of 30 adds no real expense, in total. 5q jug = $21

MikTip

<center><img src="http://pictureposter.audiworld.com/6607/m1love.jpg"></center><p>Mmmmmmm Mobil 1!

GDawgA4

Where is that new pic with GC?!

MikTip

It was in my AW picture poster...