I use 10W 30 so that's what I suggest. A 20W 50 seems a bit viscous and I would have guessed it was for a big diesel truck but I see it's for "essence" too.


1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.