Originally Posted by
Eggman
Mobil 1 is a good quality motor oil. Depending on which formula you are working with, I think you'd be fine extending your oil change interval so long as you stick with the six month time requirement. Of course as inuvik says an oil analysis would answer your question, and they don't cost much.
I mistyped earlier - I was thinking about shortening the interval. My last one was 11 months (not normal) and 6000 miles. I guess my answer is just start changing it every 6 months regardless of mileage. Hopefully the dealer doesn't point out my 11 month change if something goes wrong.
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View my fuel log 2015 Mirage DE 1.2 manual: 42.7 mpg (US) ... 18.1 km/L ... 5.5 L/100 km ... 51.2 mpg (Imp)