I was referring not to a particular branded oil, rather to the oil weights and types that the manufacturer recommended. In my 1949 Chevy pickup I never used high detergent oil. Those old cars weren't meant to use it.
In my 1962 Buick LaSabra, I used HD oils, per Buick's instructions.
In my 1986 and 1990 Hondas, those cars were meant to use conventional oils, not synthetics.
My 2002 Honda has used synthetics since it was manufactured per Honda's directive.
Most oils are made and blended by very few corporations. The brands are merely selling gimmicks.
I was referring to car dealers as lying and deceiving scoundrels because that's what they are; not because they sell branded oil. I'd as soon trust Jeffrey Dahmer babysitting as a car dealer.
Put synthetic oil in an original 1955 Chevy V-8 engine and drive it a few thousand miles. You'll regret it, but your car mechanic will love it.
But I do buy OEM parts regardless of whether they were made in Japan, China, Germany, but I won't buy a big three American made car, (GM, Chrysler, or Ford unless it's an F150) or any import car made from parts manufactured in Mexico or any Audi, Volvos or Korean made cars.
What oil to use in those vehicles is the least of your worries.
"What can be asserted without proof can be dismissed without proof." Christopher Hitchens
Last edited by sgcz75b; 02-21-2019 at 06:36 PM.