Posted by sotxbill on May 18, 2015 at 08:36:18 from (104.5.24.112):
In Reply to: Motor oil again posted by John in La on May 18, 2015 at 06:12:15:
John, I know a guy who ran rotella and His wife got pregnant and his house got termites... : )
I prefer delo when I can get it... but usually run rotella as the delo always sells out first at wally world.
As others have said. when the added catalytic converters they had to lower the zddp to keep it from coating the converters, and the oil is no longer as good as it used to be. zddp is attracted to anything extremely hot and will bond to it,, so a 3000 degree catalytic converter would be a prime target. The new oil is rated LE for lower emission engines.
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