This is for a 1.8T TT,

I know both of these oil meet Audi's specs, and both are on the "lower end" of synthetic oils, but both are readily available so they are convenient. Also, My TT has 110,xxx miles on it, so I dont know how much that factors into it. Also I live upstate NY so it gets pretty cold up here, occasionally hits single digits F. I do not know is a 5w or 0w would make a difference on those cold days or if its negligible. Let me know you thoughts between these two. Thanks

 

i have a 2000 audi tt quattro and i have been using mobile 1 0w40 and my car has been running fine 0w is supposed to be better for colder weather from what ive heard and i know your weather is way colder than cali weather

 

I was thinking of going with the mobile 0w40 during winter and the castrol 5w40 during the warmer months, I drive under 10k a year so that works out pretty good. would this be a waste of time? do you think switching the viscosity's and brands once a year would have an affect on the engine? doubt it, but there could be something I am not considering.

 

either work and will be just as good as any other oil if changed in the 5-7k miles with a good filter

 

What do you guys reccomend as the "preferred" filter? The Bosch? I've just purchased my first Audi (2001 A4 Quattro 2.8 V6) and need to do an oil change.

Also, what oil would be considered "better" than Mobil 1 or Castrol?

Thanks.

 

I give a slight edge to castrol now... but I have used Mobil one for many many years also. Any filter over $6 is fine... don't get el cheepo.

 

for a filter, basically anything BLACK (Mann, Mahle, Bosch, and mobil1).

 

I have used castrol ever since I first changed my audi tt oil. But they say that mobil is better for those who are in colder regions.

 

Quick question. I just changed my oil in my 1.8T with Royal Purple 10w30 and a mobile1 filter. I was reading on here that you should use 10w40. Will the 10w30 hurt if I change it over to 10w40 in 3k miles?

 

Jonbonazza
I would not use 10w30 or 10w40 oil. Its to heavy for the motor 1.8L use 5w30 and it what Audi recommends.
Saquatch_10
What you should be looking for is any filter which has the capacity to trap small dirt particles as small as 10 to 20 microns and the filter that uses synthetic media which is a blend of of synthetic glass or rayon microfibers with cellulose fibers they are somewhat more expensive around $13.00 but it's worth it.