Oil Change Intervals, Time vs Mileage [Archive] - Toyota MR2 Message Board

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My question is about what is more important for oil change intervals, time or mileage? I understand that there are many different factors that could affect the answer to this question, so I will explain my personal scenario, if it matters. I currently drive very little on 3 of my vehicles. My 91 Turbo MR2 140k miles, I don