super tech synthetic oil at WalMart
I tried to use the search engine here and it wasn't working (for me anyway :-) )
Much as I dislike "wally world" I do go there occasionally as living in a small town there's stuff you go there for or drive 2-3 hours-I may be opinionated, but not totally dumb. Anyway, saw a friend who runs a lawn service business who was buying 4-5 quart containers of super tech 5W-30 synthetic oil which he said he uses in his machines. He said he's used it for a while and as far as he's seen it's a great value for the money.
I never considered it, always kind of thought you get what you pay for in lubrication products, but $18 for a full synthetic (5 quart) did get my attention.