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Click on image for the lowdown. 
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| | | Forums66 Topics128,012 Posts1,055,315 Members48,419 | | Most Online14,466
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: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | I have used a 20W-50 with no apparent problems. Any of the multi-grade oils should work fine. At present, I'm using a 15W-40. Here is a Chevrolet Service News sent out at the end of 1954 If you drive in the winter, use the 5W-20 that my wife had to use all year in her VW Turbo. | | |
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