Crankcase Oil 1921 Single Six

Posted by Ken Karns On 2017/7/20 18:38:48

Greetings, I'm new to the forum and have inherited an all original 1921 Single Six Sedan. Would like to know what modern crankcase oil would be appropriate for this car. My first though was a non-detergent straight 30 wt. Got to crawl before I can walk!...Thanks, Ken.