One thing about my area is that there's still a lot of older 2-strokes ****ing away oil fuel mix that nobody pays attention to. Most of the lakes in Illinois still allow the old engines I take it because they're getting fewer and farther between and fisher/sportsmen still put goodly sums into the local coffers with v4 Evinrudes and little 5hp tohotsu's. So there's your oil sheen for you...