Joe I think you've missed the point, a brand new 90 VRO should never have
been less than 50 to 1 even from the factory.

I totally agree that it *should* never have left the factory at less than
50-1, but the fact is they did.
In 1990 they were still being *designed* with 150-1 to 50-1 variable VRO.

My only beef is with your telling Mr. Diesel that his pump should be using
oil at a 50-1 ratio. In reality he would probably see around a 75-1 ratio.