OMC was necessarily cautious because some of the early "Super Synthetics" were not what they were cracked up to be. Dad made Lenard oil of Michigan an Evinrude distributor when they had to replace over 4000 outboards under there oil warrintee when they found there revolutionary synthetic 50 to 1 outboard special turned to super glue when mixed with a certain blend of Wisconsin gasoline. OMC did extensive testing before coming out with there own brand in ’65 . . . 😆
