Engine oil Mobil or Shell

Rotella T 5/40 syn hopefully going in this weekend after a seafoam treatment. 25 CAD for 4 litres, inexpensive as it gets up here and you can get it at any TSC or truckstop.

I switched to Mobil 1 0w40 european formula in hopes of better protection and less consumption. I have 51500 kms right now. I will check mine every 1500km this next oil change.

Mobil 1 Turbo Diesel Truck 5w40 should be able to go longer-- but you need to get a Used Oil Analysis done, in order to determine if you can.

Personally I would run a higher detergent 40 weight oil such as Rotella synthetic 5W40 than a "high mileage" oil.

Speaking only for the 2.0T in our B7 A4...it burned nearly 1qt of Castrol Syntec 5w40 during a 5k interval. Before and after that interval I ran M1 0w40 for 5k, and it burned next to zero. Needless to say I'll continue to use the M1.

0w40 and 5w40 Mobil 1, both perform nearly identically from what I can tell. I think the car started a little quicker in the dead of winter when I switched to 0w40.

You should be ok I run Mobil 1 0-40w in my 120k 1.8t and I have no isues what so ever

i'm running the 0w-30 and it seems to have appeased my miata's normally (for all of them) ticky lifters. it starts better cold too.

I noticed M1 burns less then castrol, i might try redline and see. i am pretty happy with m1 compared to castrol thats for sure.

for the last year ive ran the pure one \"micron\" and a a soup of mobil one 5w30 with the lucas fully syn additive. nothing but happy driving. the tick has gone away with the mix, or so i think.