Kendall probably had a contaminated batch but I agree, who wants to take a chance after just one oil related failure?

And don't forget about Classic Car Club of America's oil which has a very high zinc content specifically for old engines. 15w-40 with 1600ppm zinc content. Somebody on this forum actually called Shell and they told him the level was about 1100 ppm or something like that.

https://inrccca.org/product/classic-car-motor-oil/


1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)