Where did you get that idea? I said the oil never failed in 38 years.quote:Originally posted by ADFD1:
I thought Amsoil had no claims in 38 years? AD
You are getting closer. The vehicle manufacturer is not responsible for any oil failures, only part defects. If the oil failed, it doesn't matter what specs it met or didn't, or the oil change interval. The ball would go back into the oil company's court. That is why I think it is important to use an oil that has never failed in 38 years with a good warranty, whether you are in or out of the vehicle manufacturer's warranty.quote:Originally posted by ADFD1: Back to Ford, or any car maker. You could run Synlube for 100,000 miles w/o a change and if you never develop a problem the warranty would remain intact. The only time the warranty would be void is IF there is an engine problem related to oil and the OM recommended intervals and required grade and rated oil was not used. So again follow the recommendations.
Out of warranty do what ever you like. I think we agree on that too.