Shelby Enterprises recommended Union20W/50 (conventional)
oil for my new engine. I plan on changing to
synthetic when I do my first
oil change. Since my machine is used for street and occasional autocross purposes, I am primarily interested in durability. I get plenty of horsepower, so I don't need to go with the thin stuff to squeeze out a few more ponies. Since I am blessed with decent weather, it doesn't get that cold, so I think continuing with 20W/50, or a reasonable facimile, will work. My question is, what brand to choose? There are so many choices out there, it gets confusing. By the way, the rumors about FEs leaking a little
oil here and there are correct. Even with my FE replica motor. I just wipe it down regularly. Sure runs good though! Rich