Originally Posted by Bonz
No heartburn if that's what you believe, but I'd like to see the studies
Blackstone Labs has got the data that the level of additives don't have an awful lot to do with wear nor that one oil is better than another... so either the M1 or Amsoil will meet and exceed your mileage expectations...
"So what does this tell us? Well, on the face of it, it doesn't really look like
the levels of additives have an awful lot to do with engine wear. Brands
with more calcium and zinc don't have significantly better wear readings
than the brands with relatively lower additive levels."
"Well, we're no closer to saying that one type of oil is better than another,
that's for sure. We see much more variation in wear levels from the type
of engine, the time on the oil, the viscosity, the use the engine sees, etc.
Whatever differences exist from oil brand to oil brand, we don't see a lot
of difference in terms of wear for most types of engines."