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Braunschweiger · 01-30-2023, 03:42 AM

I think so too, I also drive 15W-40,
with older, unknown engines I would try 20W-50.

01-30-2023, 03:42 AM	#70
Braunschweiger Registered User Join Date: Aug 2020 Location: Braunschweig, Lower Saxony, Germany Posts: 758	Re: 1964 GMC Palomino Tan Survivor I think so too, I also drive 15W-40, with older, unknown engines I would try 20W-50. __________________ ------------------------------------------- Greetings Harald My 62 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=829782