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10 members (DadsFirstPickup, TrknGMC, Guitplayer, 3800GUY, Woodcmiami, KCMongo, Shade Baby, 2-Ton, NorCal52Suburban, 1 invisible),
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Mod | | | Forums66 Topics128,049 Posts1,055,662 Members48,426 | | 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!
| | THANKS!
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: Dec 2012 Posts: 163 'Bolter | | 'Bolter Joined: Dec 2012 Posts: 163 | I have a 235 in my 51 3100. I have been running 10w30 but am thinking about changing. It does not burn any oil or smoke but it does have some cam and lifter wear.(no lifter noise after valve adjustment). Small amount of front and rear seal leaks even after replacement. Oil pressure is low when warm at idle. Would I benefit changing to 10w40? Posts show various opinions regarding oil. I live in Virginia.
Thanks,
Howard | | |
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