5k miles on the initial oil!!! EEK thats really bad.
do a change at 500 miles. it can ONLY do good things for your motor.
i myself have used synthetics in the past, but i prefer a quality conventional oil now. it just suits my driving style(i dont drive much). so i can change the dino oil every 2500 for less than sythetic at 7500 or so. i cant imagine running that long without a change though. when i used synthetics i still changed it at 3000.
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