Originally Posted by Kurgen

Thanks wjxavier. It does help. Given the beautiful winters we have in Cleveland, along with the usually balmy accompanying temps, I think your advice on 5w-30 in the winter might be the ticket. Will give it a go. I will then switch it as you suggest in the spring for the 2-3 weeks of good weather we have.

Related, is there a better type oil for flat tappet lifter engines? I had heard Lucas makes an oil designated as a racing oil that is supposed to lubricate these older engines better. Do you know what the particular characteristic is that makes it better?