I have been using 40:1 for about 1,000 miles of worry free mopeding. My ped now has 1,900 miles. I recomend it highly. 25:1 is too thick. To much smoke, too much build up. Newer oils are much better than oils being used in 1980
Rarexo, dont get your pants in a bunch! Read most posts with a grain of salt. The post stating 25:1 is making hobbits slow is merely saying that 25:1 is too rich. And for the most part, I agree. 25:1, will make my hobbit slower.