what oil should I use in my 53 Clipper?

Posted by Brenda On 2017/4/29 9:42:33

The previous owner always used 30w but it is a rebuilt engine with about 40,000 on it. Am I safe to use 10w30 or should I stay with 30w? I live in Southern California and the temp. never gets below 40 degrees in the winter, stays mostly 60-80 degrees. The oil change stations always use 10w30. Your advise is very appreciated. I always trust and verify.