10w-30 or 10w-40 for my 98.5 2.8 any preferences or factual stuff that will lead me to use either one. I have a case of Shell 10w-30 so im just gonna use that till it runs out for now.

 

0w/30 full synthetic long life best recommended for your car

 

I am pretty sure my audi manual says 10w30.

 

Last 2 oil changes I've gotten I've been getting Castrol Syntec blend (synthetic/mineral 50-50% mix) of 5w-30. I just had one 2 days ago while the car was in the shop and that's what my dealer put in it. My car has 101K on it.

 

You can choose one of these Audi approved oils.

Castrol, Castrol Syntec 5W-40
Chevron, Chevron Supreme Synthetic 5W-40
Elf, Elf Excellium LDX 5W-40
Kendall, Kendall GT-1 Full Synthetic Motor Oil 5W-40
Mobil, Mobil 1 0W-40
Pennzoil-Quaker State, Pennzoil Synthetic European Formula 5W-40
Pennzoil-Quaker State, Pennzoil Synthetic European Formula Ultra 5W-30
Pennzoil-Quaker State, Quaker State Full Synthetic European Formula 5W-40
Pennzoil Quaker State, Quaker State Full Synthetic European Formula Ultra 5W-30
Seventysix Lubricants, 76 Pure Synthetic Motor Oil 5W-40
Texaco, Havoline Synthetic 5W-40
Total, Total Quartz 9000 5W-40
Valvoline, Valvoline Synpower 5W-30
Valvoline, Valvoline synpower 5W-30

 

Which viscosity is recommended for the winter and the summer?