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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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| | | | Joined: Oct 2021 Posts: 6,826 'Bolter | | 'Bolter Joined: Oct 2021 Posts: 6,826 | 30 weight is probably fine out there where it's hot all the time.
I prefer 15w-40 or 20w-50 on most of my old "worn in" engines here in Atlanta.
This method is pretty popular on this site and my dad worked at a Howard Johnson's garage in the 1950s/60s that did this type of engine flush.
To clean the engine, add 2qt of diesel fuel to the oil in the crankcase and let the engine idle in the garage at 1500-2000 rpm for 30 minutes.
Don't drive the truck while the diesel fuel is de-gunking your engine.
Drain the oil and diesel mixture out add fresh oil and filter.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
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