3000W Chinese Gensets Info.
professor95 wrote: EDIT ADDED 45/5/2013- When this thread started in March of 2005, I never expected to see it survive this long or amass the quantity of information that has been shared here. In...
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scottz wrote:
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The manual states not to run high octane gas. This is a problem for me as I only keep high-octane non-oxygenated gas on-hand. Does anyone know why they recomend not using high-octane gas? I can only assume it is to keep temperatures down.
-Scott
This is a common warning in small engines. I had a friend buy a new lawnmower, it wouldn't start, he returned it and got another one. Same thing, it wouldn't start. He called me to see if I could figure out what he was doing wrong. He was using high-octane gas in it. After putting in regular-grade gas, it started and ran fine.
High-octane gas takes a higher temperature to ignite, hence its resistance to detonation. Small air-cooled engines typically have a low compression ratio which results in low combustion chamber temperatures, making it hard to ignite high-octane fuel.
Steve
