Quote:
Originally Posted by MightyBobo
Just for reference, my Mobil 1 in my truck had about 6000 miles on it, and its flashpoint was still around 400 according to Blackstone labs.
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It's all in how it is driven. 6000 easy highway miles with synthetic and it will come out in good shape, probably could even stretch to 10000 if it is almost all highway. But do 3000 hard miles with a track day or 2 and it will beat the hell out of your oil. It is a good idea to get your oil analyzed once or twice to see what your driving style is doing to the oil.