Originally Posted by Mike G
I would stay away from the Diesel oil...
Huh??
Actually, diesel-grade oil would be a great choice for you, with a much better additive package, especially for an older vehicle. It is available in 10W-30. I use
Mystic JT-8 Super Heavy Duty, but there are others that are good as well - Rotella T, Delo 400 to name a couple.