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Hi Scotty, should I still use slick50 even if Im already using mobil1 synthetic oil? Man I can always trust your no bs, car knowledge, used to be Chevy and Toyota mechanic and your the real deal unlike em shady tree mechanics that don't even know how to troubleshoot anything, they just start replacing parts, and hope they get lucky and fix the problem

I would use it every 3rd oil change to ensure the engine lasts as long as possible