I have a 1970 Dodge Dart Swinger with a 225 Slant Six. The car is in great condition, but has unknown miles. The car is only driven 100 or so miles a month. I plan to someday drop a 360 in it...but that is a way off. I live in Los Angeles were the temps currently are in the 90's with winter temps rarely in the mid 30's or higher. Looking under the valve cover there is no sludge, only varnish. There is a slight leak from the rear main but over all it runs very strong.
I am looking for non-synthetic oil recommendations that I can buy locally. I was thinking Castrol HM 20W-50.
I am looking for non-synthetic oil recommendations that I can buy locally. I was thinking Castrol HM 20W-50.