Originally Posted By: SR5
Penrite make a series of Heritage Oil for classic cars, including a non-detergent SAE 30 monograde with 1150 ppm Zinc.
Quote:
Penrite Heritage LTM is a premium mineral, Non-Detergent, monograde engine oils manufactured from high quality mineral base oils and containing anti-wear, anti-rust and tackiness additives. They have been specifically designed for use in vehicles built prior to 1920.
That's something I've never understood, the use of "old" oils in old engines. I mean, there's nothing about that engine that would dictate the use of an ND oil, would it? It's just that that's what they had back then, surely a modern oil with detergents isn't going to be detrimental to the engine, is it?