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| Joined: | 08-02-2018 |
| Location: | Long Beach, California USA |
| Posts: | 420 |
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Good stuff, good info, as usual. Maybe you should be teaching this stuff at a college or something.
As for me, Castrol 20W-50W was known as the "sportscar oil" 50 years ago when I was a kid. I know things change but I've been using it ever since.