I have used many brands and can tell you that cobs is the best. I never let myself run out I used to have to keep oil flow on the truck but not for years since I have been using Larry's pog
Chemspecs always worked really well for me...then today I noticed one that I brought from a different distributor looked and smelled different..so one of them is switching their shit and using a chemspec bottle..I will try this new watery one..the other one was very thick and like oily, but worked great.