Originally Posted By: xtell
In the early 80's the landscaper that I worked for used Spectrum oil in his Chevy work trucks. He changed it out at 3,000-4,000 miles. All three trucks developed excessive cam wear after 60,000+ miles. I used it in my 1974 Monty Carlo as well and it had excessive cam wear. I later read that some Chevy 350 engines were built with faulty cams which lead to the wear, but I never went back to the Spectrum oil.
Well, that is almost 30 years ago and even many of so called "name brands" were putting out sub-par oil.
In the early 80's the landscaper that I worked for used Spectrum oil in his Chevy work trucks. He changed it out at 3,000-4,000 miles. All three trucks developed excessive cam wear after 60,000+ miles. I used it in my 1974 Monty Carlo as well and it had excessive cam wear. I later read that some Chevy 350 engines were built with faulty cams which lead to the wear, but I never went back to the Spectrum oil.
Well, that is almost 30 years ago and even many of so called "name brands" were putting out sub-par oil.