Does anyone have any experience using the Bass Pro Shops 4 stroke outboard oil? I realize it's non-synthetic, but it appears to be FCW certified and is priced at $10 per gallon on sale (less than 1 quart of Yamalube). Is the stuff any good, or does the old adage of "if it sounds too good to be true, it is" apply? It would be used in a Yamaha Vmax SHO 200 (4.2 liter).