This might seem like a very simplistic question, but what is a good oil to use in the Avanti R1 engines? I know the older engines are constructed differently and running some of the newer oils may not be the best choice. I've seen different suggestions on the net, many of which are rather complex and even involve the use of diesel oils (of which my knowledge is limited). Needless to say, I'm at a bit of a loss on this one. Any suggestions are appreciated. My apologies if this has been asked before. Didn't see it on the forums, but I'm sure it's not the first time it's been addressed. Thanks all.
