I haven't purchased any oil for my outboards lately, and was just wondering what is the best value today. I have two Evinrudes, a 25 HP, and a 9.9 HP used primarly for fishing at low speed. I like to stock up on oil when the price is right, so I don't buy often. I have always used the regular OMC Brand. Now I see all the Blends and Synthetics etc, and of course Wally World for $6.62 Gal. What does everyone think? I know there must be some opinions. My 25 HP is a 1988, while my 9.9 HP is a 1983.