Originally Posted by
Sinfix_15
What kind of car and mileage? there's really no way to tell you a solid answer without a tests, i can make an assumption... but the only way to know is a test. Lets say you had a 2010 Honda accord.... it would be safe to assume your Honda engine is running pristine and not leaking any coolant or fuel into your oil, knowing that your oil is not contaminated, i could confidently say yes, your amsoil would go 10k miles easily. Flip that script and use a 98 Cavalier as your example vehicle.... fuel could pass the rings, may have a small coolant leak ect ect that can contaminate the oil. These are all things that a $35 UOA can tell you in specific detail. Based on the information you got back from the UOA, you could then decide what oil is best for you. Lets say your car had elevated fuel levels in the oil shortening it's lifespan, then you might decide that a cheaper oil and more frequent changes was a better route for you.
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