Skip to main content

Reply to "Engine Oil Testing Results"

You only need a certain level of ZDDP in almost all of these engines, i.e., Pantera engines.
Over that number, whatever it is, is counter productive.

IF you are using any kind of ZDDP contents then if the oil isn't hot when you change it, it can tend to stick to the pan in the corners and act as a solid.

I remember lots of times scraping the semi-hardened gunk out of the corners of oil pans. Without being a chemist I'd bet a large percentage of that was ZDDP itself that wasn't dissolved in solution sufficiently?



By the same token, there should be no one here worried about contamination a cat with their oil and considering how fragile the flat lifter camshafts can be the 70s ZDDP engineering number is really a good idea to maintain in the oil.


I happen to agree with not contaminating the cats. Cars properly engineered to run them have been around for a while and actually run quite well. Amerisport is the only one that "built" Panteras that ever had to worry about that?

I wonder if there was a consideration for the oil for those engines?



Same thing with unleaded fuels. Many hydo-carbon substances are quite poisonous and toxic. "Lead" in fuels is one of them. I don't miss the stuff at all. Ford heads do not suffer from loosing lead in fuel. The cast iron used in nodular and not the soft iron GM used.


It's been quite a while since Penn State oil was made from only pure Pennsylvania grade crude. It's all a blend now but am I remembering it correctly that it was not an oil that contained sulfur and that's what made it the best?
×
×
×
×