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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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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
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Nov 2006 Posts: 4 Moderated | | Moderated Joined: Nov 2006 Posts: 4 | I have noticed that the FLAPS have largely stopped selling conventional motor oil in everything other than 10W30...it's all semi- and full synthetic on the shelves now. One of the counter folks told me that because new cars and trucks usually mandate synthetic right from the factory, the oil producers are dropping conventional dinosaur juice from their product lines, which implies that eventually conventional 10W30 oil will disappear, too. Rebuilt engines probably have seals and gaskets made of updated materials, but are there any other pitfalls to pouring synthetic oil into our old engines? Or do I start hoarding 30-weight?
Jamie
'63 Suburban
| | | | | Joined: Feb 2004 Posts: 29,742 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,742 | I run 15W-40 Diesel oil in everything I own, cars, trucks, tractors, lawn mowers, and even my Harley Evo. I buy it in 5-gallon pails from the local farm supply store. No oil-related problems yet.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jan 2020 Posts: 620 'Bolter | | 'Bolter Joined: Jan 2020 Posts: 620 | Wow, great information Jerry. Doc.
Currently making 1954 3100 better than new and Genetics
| | | | | Joined: Mar 2014 Posts: 4,475 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,475 | You can also buy 30 weight Valvoline VR-1 on Amazon. It has extra zinc in it, and that's good for older engines. Living in Florida is the same as living in Texas...meaning the developers have made certain we'll get no winters any longer, so 30 weight will be fine for you all year long.
~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
| | | | | Joined: Jan 2002 Posts: 2,839 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 2,839 |
Craig My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear My truck ....... Respect The Rust If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
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