Originally Posted by cephraim
I think I'm going to try pushing my Mobil 1 0W20 oil changes from 5500 to 7500miles between changes. My dealer has been recommending 5500, but seems like a lot of people go much longer, even in cold climates.
IIRC, the manual says 7500 miles, unless you're doing "premium" maintenance or schedule 1.
You might be wasting money w/5500 miles. Ever sent in samples to for analysis to places like http://www.blackstone-labs.com/
just to see how the oil looks... err tests after say 7500 miles?
I've done it for my former 04 Z after waiting a year between oil changes (VERY little mileage) and my Prius after waiting a few months longer than the 6 months, also due to putting on little mileage. The Z's oil turned out nowhere near as bad as I feared.