Re: 100:1 Mix
E85 is sold in about 7 stations in Colorado its hard to find. It is not even where the gas and diesel pumps are located It has a yellow handle and pump with all the markings to go along with it. 2Door did not say he was using E85
There are a lot of different factors here that are found in about 3 other parts of the USA. High heat,high altitude and no moisture. Air going past an object with 25% moisture will not pull as much heat as air with 75 to 90% moisture. Thats why we hear oh but its a dry heat it doesn't feel as hot. With the standard oil mix. doesn't matter syn or reg the oil not only lubes which the opti-2 is doing but the main thing is that its cooling the engine.
Like cyclepro101 showed us " Mind u Opti-2 is not a synthetic oil at all, its paraffin based " which at extreme temps and low ratio it will start to glaze the cyl and rings.
Lawn mowers, chain saws, weed whackers don't work as hard as these little engines do for as long as they do.
There are a lot of things to take into consideration on why things like this effect engines especially with molly rings.