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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Mar 2014 Posts: 4,509 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,509 | In Fort Worth, I'd continue to use straight 30W and let it be. With 81,000 miles on it, you'll have to rebuild it some day, but if it isn't smoking nor leaking you're in good shape. I would avoid all the multi-viscosity stuff and especially the synthetics.
~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
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