$500 on oil?

[Audi Junkie]

I think a minor adjustment in driving warm-up or general style would account for many times more fuel economy than the difference between "synth" and dino 10w-30.

 

[glennc]

Originally Posted By: Steve S
I haven't seen any real proof that syn vs dino will make any difference in engine life .

Absolutely agree.

Originally Posted By: Steve S
Even if I got syn oil for free I would not waste it and change it out too soon it is a waste.

Same here.

Originally Posted By: Audi Junkie
I think a minor adjustment in driving warm-up or general style would account for many times more fuel economy than the difference between "synth" and dino 10w-30.

Yes. In fact, that might be many times zero.

Originally Posted By: FZ1
I cite as incontrovertable proof,the Amsoil 4 ball wear test.

You're joking, right?

 

[FZ1]

Right. I noticed an increase in mpg when I went from dealer fill to M1. Not science,just my personal observation. Increase could have been caused by other factors such as old dealer fill being a greater weight,old oil being spent,etc. At today's gas prices you only have to get a small mpg increase to pay for the extra cost of syn.