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How many miles are you your cars? I change my oil once a year, which is about 6k miles. I drive the car pretty hard, including long WOT pulls to 160+ mph, with FBO and stage 2+ tune... I check my oil about every 1k miles and even the last check right before i change it at the end of the year, its still full. So i have also questioned how accurate it is. Really wish we had a good 'ol dipstick.
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