Mobil 1 Extended Performance High Mileage Full Synthetic Motor Oil 5W-30, 5 Quart

from indiscriminatereviewer

I have used this oil previously and although I have NEVER driven the 20,000 miles or the one year without replacing it, at a 15,000 mile intervals it still comes out with pretty good viscosity and not at all really dark dirty so I'm convinced that the manufacture's claims are accurate. This is a ...

from Big red

Oil change @ 5000 miles to keep it running great !

from GregM

We have 260k miles on our 2004 Corvette and have always used Mobile 1. I'm at the point where I change the oil when the oil life monitor is between 0%-5%. I was able to do this by doing oil samples and when one would come back saying there are still additives in it and I can go longer before a ch...

from TorchMatic

I bought a z51 c7 museum delivery first year & still have the car. Dry sump di motor, GM says use Mobil1 & that's all It's ever had. I change the oil once per year myself, engine still consumes no oil 9 years 78k mi later. Engine runs like new, 4cyl mode & all. 32 mpg at 70 mph. GM was right, Mob...

from Markeezee

I've looked and I can't find another extended oil change interval (guaranteed for up to an amazing 20,000 miles) full synthetic oil formulated for high mileage vehicles. My cars drive great on it. The old oil looks visually better at change time, although I haven't had it tested.