buickandeere, I like to error on the side of caution, so that why I spend a few pennies more on 89 octane. Correct me if I'm worng, I thought the EPA required e10 to clean up the air and make cars run cleaner. My thinking is that boosting the E rating to 17.5, or whatever it is by adding 1/2 gallon e85 to 4.5 gallons of e10, will do two things, lower the combustion temperature and increase the amount of oxygen during combustion leaning down the fuel/air mix.
I think my e17.5 is doing just that. The only way I currently have to tell things are improving is by looking at the carbon on the plugs and the carbon on top of the piston is going by-by.
I read someplace that adding oil to gas could lead to detionation, which could lead to holes in piston.
I don't like the idea of adding water to a hot engine. I once lost a 3.5 briggs engine because a large chunk of carbon broke off, got wedged between piston and cylinder and put a major grove in aluminum cylinder wall.
Besides using something to decarbon, really doesn't fix the reason why carbon is there in the first place. I'm looking for a way to lean thing down when I have no carb adjustments.
What's your thoughts? An I heading in the right direction or heading to small engine warehouse to buy a new engine? george
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Today's Featured Article - Sunday Drives - by Cowboy. Summer was finally upon us here in Northern Maine. We have two types of industry up here, one being "Forestry" (Wood Products) and the other "Farming" (Potatoes). There is no shortage of farm tractors and equipment around here! I have been restoring old Farm Tractors for the past 6 years, and have found it easier and less expensive to hit all the auctions and purchase whole tractors for parts needed. My wife who works at a local school, and only has weekends and summers off, while on t
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