This discounted grocery store acouple miles from my house always has something different going on wheather its great deals on vitamins or shampoo or today was this oil in topic. I picked up 15quarts for 2 bucks a pop plus 6% sales tax. Came out to $31.80 out the door. I never heard of this oil before though. Says on the bottle that its for classic cars with higer levels of Zinc. Its rated SN on the bottle, couple guys I work with have some older muscle cars that im thinking of selling it off to them if there intrested. If it wasnt for BITOG and the addiction it creates -- I NEVER would have even bothered looking twice at this oil on the shelf let alone buying it!!