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Click on image for the lowdown. 
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| | | Forums66 Topics128,049 Posts1,055,653 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: Jun 2005 Posts: 168 'Bolter | | 'Bolter Joined: Jun 2005 Posts: 168 | The guys over at the ecj5 forums recommended using the 15w40 rotella for the old Buick motor in my cj5. They specifically mentioned the higher zinc content since the oil is meant for a diesel motor.
Liquidated my projects
Now looking for a decent '47-'55.1 3100, 3600, or 3800
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