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Re: More Engine Oil-Alphabet, Numbers, and Symbols Soup-Anyone?
Posted to Technical Discussion Forum on 3/1/2024 8 Replies

First: I'm a big fan of good Almond Croissants. It sounds like I need to check out Haydel's.

Great Post!

In 1972 a High School Autoshop Teacher introduced me to the API oil service rating system. API SD was being replaced by SE. But, before we learned abou... Login to read more.

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