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Originally Posted by usetosellhummer
wow some serious Dr. Z stuff, still not sold, every 3-4 k as the old man told me too.
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Can I ask why? I'm just curious. Testing has proven the oil-monitor conservative. Newer engines just don't mess up your oil. It is your money, and I respect the desire to take the very best care of your engine, it's just that this is a pretty obvious way to save time, money, and oil. You engine will be fine (probably outlast the rest of the vehicle!)