Rotella plus zinc additive?
#21
Also, keep in mind, that the higher the "cold" number is, the thicker the oil will be at startup. Thick oil does not flow, and is therefore not doing anything productive.
#22
Alas I think my truck was originally from Georgia or somewhere with no snow. Don't believe there's a block heater. Thinking of getting an oil pan heater but since I live in an apartment, it will still be tough to rig up in the am!
#24
Have been wanting to try the 15w40 so I guess I'll do that.
#25
Join Date: Mar 2013
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" certain gas motor oils have much better wear protection and Zinc content is not correlated to wear protection. it also basically says that our fetish with Rotella is completely folklore.",
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This is true, for engines of more modern design, but the old school design PUSH ROD VALVE TRAIN by General Motors, 1961--1963, Buick, Oldsmobile, Pontiac later acquired by Rover, NEEDS zinc, as found in Rotella, or you get excess wear of valve train. If you think it is folklore, eventually you will see excess valve train wear.
,
______________________________________
This is true, for engines of more modern design, but the old school design PUSH ROD VALVE TRAIN by General Motors, 1961--1963, Buick, Oldsmobile, Pontiac later acquired by Rover, NEEDS zinc, as found in Rotella, or you get excess wear of valve train. If you think it is folklore, eventually you will see excess valve train wear.
,
#26
" certain gas motor oils have much better wear protection and Zinc content is not correlated to wear protection. it also basically says that our fetish with Rotella is completely folklore.",
______________________________________
This is true, for engines of more modern design, but the old school design PUSH ROD VALVE TRAIN by General Motors, 1961--1963, Buick, Oldsmobile, Pontiac later acquired by Rover, NEEDS zinc, as found in Rotella, or you get excess wear of valve train. If you think it is folklore, eventually you will see excess valve train wear.
,
______________________________________
This is true, for engines of more modern design, but the old school design PUSH ROD VALVE TRAIN by General Motors, 1961--1963, Buick, Oldsmobile, Pontiac later acquired by Rover, NEEDS zinc, as found in Rotella, or you get excess wear of valve train. If you think it is folklore, eventually you will see excess valve train wear.
,
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