Quote:
Originally Posted by mach1fan35
I agree. The 0w20 meets or exceeds the Ford spec. Seems fishy. But I dont doubt 99GTCONV. I was wondering why the cases of 0w20 were so cheap at Wally world.
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It meets or exceeds specs, but the language used by Ford states that all of their newer gas motors should run 5w20 or risk voiding the warranty. I personally think that it could be challenged, but I wouldn't want to go through the trouble of finding out.