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Reply to "New Car Warranty using Amsoil..."

Do what you want. Hypothesize all you want. But you haven't proven a thing. You have yet to show a real life drawn out court battle over AMSOIL. I know of no cases where anyone had a warranty problem using extended oil changes with an AMSOIL recommended fluid for 38 years, millions of vehicles, billions of miles. The proof is in the pudding (and the oil).

And of course, if any oil fails, even while following the vehicle manufacturers guidelines, then your "scenario" would still apply. Vehicle manufacture warranties only cover defective parts, not defective oil. So it is best to pick an oil with the best warranty. Some are only for 4,000 miles/4 months and cover only 15 parts. Some oils don't seem to offer any written warranty. Your choice...
Last edited by timvipond
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