Hey guys..getting oil changed tomorrow..was wondering which oil should I use? I've heard lots of different things..just wondering what you all thought!

 

Make sure its synthetic

 

I use Mobil 1 Syntehtic, 030.

When the dealer did my 5K mile oil change, they used 040 Synthetic, dunno what brand it was.

I am now at 10k miles and was down a quart so I added a quart of Mobil 1 030, am I right that it's ok to mix them?

 

I have always heard that you should never mix different weight oils but it is ok to mix regular and synthetic of the same weight.

 

don't mix full synthetic with regular oil its like putting oil in water they don't mix, semi synthetic on the other hand you can top up with regular or as I call it none synthetic

 

Are you shitting me? Damn, where did you hear this? I never get straight answers on this type of thing.

This is the 2nd time I've done this. I have not noticed any problems since doing it.

On the other hand it seems obvious to me that you'd never mix Synth with regular, so maybe you are 100% wrong today

 

These are Audi approved:

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


Audi has now gone to synthetic in all it's cars due to oil sludge issues.

 

Crap, what about Mobil, Mobil 1 0W-30? That is what I have a whole case of and have put 1 quart into my engine on two seperate occassions when it was low on oil.

I know when I last went the dealer filled it with 0W-40. So mixing in 0W-30 Mobile 1 is a no-no?

 

I've been running Mobil 1 5w-30...didn't know there was any issue...?

 

nothing about motul.. that is what our local audi dealer uses.