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The Water Cooler
General Discussion
Oil change intervals.
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<blockquote data-quote="Shadowrider" data-source="post: 4233753" data-attributes="member: 3099"><p>FWIW, Amsoil Signature Series (their best) is rated for 25,000 miles in normal service (which is basically all highway and virtually nobody is in that service category), or 15,000 miles in severe service which includes short trips, stop and go, etc. and also turbos.</p><p></p><p>I wouldn't think twice about running Pennzoil Platinum to 6k miles and I'd take PP Ultra to 10k and sleep well. The new API service classifications have durability factored in now, that's somewhat recent, as in the last few years. It used to be oils only had to pass all the tests when it came out of the bottle. Not so anymore.</p></blockquote><p></p>
[QUOTE="Shadowrider, post: 4233753, member: 3099"] FWIW, Amsoil Signature Series (their best) is rated for 25,000 miles in normal service (which is basically all highway and virtually nobody is in that service category), or 15,000 miles in severe service which includes short trips, stop and go, etc. and also turbos. I wouldn't think twice about running Pennzoil Platinum to 6k miles and I'd take PP Ultra to 10k and sleep well. The new API service classifications have durability factored in now, that's somewhat recent, as in the last few years. It used to be oils only had to pass all the tests when it came out of the bottle. Not so anymore. [/QUOTE]
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Oil change intervals.
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