Quote:
Originally Posted by Whatcop?
I don't think it has been changed at all so I am going to go ahead and change it.
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If you aren't sure, I'd change it as well. Keep in mind that both GM and most major oil companies (AMSOIL included) recommend oil changes at least annually independent of mileage. The purpose for this recommendation is not that the oil will have "broken down", but that impurities such as moisture, combustion byproducts, wear metals, etc build up over time, some of which are independent of mileage.
