Originally Posted By: Quest
with low compression ratio: I typically use 87 octane gas + 2-T mix in all of my 2cyl engines, trimmers, etc.
higher octane rating has nothing to do on these lowly (low compression) engines. I'd rather spend time sourcing high quality gasoline in my area for the job instead.
Q.
BTW: the proper technical term for octane is the measurement of how resistant of the gasoline to resist pre-combustion during compression stroke, commonly known as "anti-knock". It has no relation to how "fast" the gasoline burns (very poor yet common conception) for all automotive gasoline grades sold in NA, flame speed is pretty much controlled to be the same all across the board,difference is in the degree of octane for the gasoline to resist pre-combustion during compression stroke.
Q.
I like that explaination of why the rave of 91+ octane must be better for small engines
For different projects over the past year I ran trufuel50 in my husqvarna weedeater and blower and Stihl chainsaw. They all three ran great. I had no hassling with fuel spillage as bad as pouring gas out of a typical gas can. I bought it by the case generally since I could possibly keep the price per can down.
If you do not run your chainsaw but moderately I highly would recommend looking in to giving trufuell a chance. 92 octane, synthetic oil, and has a 2yr shelf life. That means if the gas sits in your small engine there won't be any corn soaking up any moisture whatsoever in your gas tank for up to those 2 ... perhaps. Because it all depends where and how you store that piece of equipment.
I am now testing how the difference in performance with running husqvarna xp oil, Shell's v-power 93 octane, and maybe a dash of marine StaBil for certain to eliminate any chance of ethanol in the gas still.
Yesterday the blower ran great, but the weedeater ran a little too great so I might dial it down to running 89octane instead. It is just that the weedeater seemed funny. I don't know if it was because of the fuel switch or what but I know that the difference in switching fuel made a good bit of difference.
with low compression ratio: I typically use 87 octane gas + 2-T mix in all of my 2cyl engines, trimmers, etc.
higher octane rating has nothing to do on these lowly (low compression) engines. I'd rather spend time sourcing high quality gasoline in my area for the job instead.
Q.
BTW: the proper technical term for octane is the measurement of how resistant of the gasoline to resist pre-combustion during compression stroke, commonly known as "anti-knock". It has no relation to how "fast" the gasoline burns (very poor yet common conception) for all automotive gasoline grades sold in NA, flame speed is pretty much controlled to be the same all across the board,difference is in the degree of octane for the gasoline to resist pre-combustion during compression stroke.
Q.
I like that explaination of why the rave of 91+ octane must be better for small engines
For different projects over the past year I ran trufuel50 in my husqvarna weedeater and blower and Stihl chainsaw. They all three ran great. I had no hassling with fuel spillage as bad as pouring gas out of a typical gas can. I bought it by the case generally since I could possibly keep the price per can down.
If you do not run your chainsaw but moderately I highly would recommend looking in to giving trufuell a chance. 92 octane, synthetic oil, and has a 2yr shelf life. That means if the gas sits in your small engine there won't be any corn soaking up any moisture whatsoever in your gas tank for up to those 2 ... perhaps. Because it all depends where and how you store that piece of equipment.
I am now testing how the difference in performance with running husqvarna xp oil, Shell's v-power 93 octane, and maybe a dash of marine StaBil for certain to eliminate any chance of ethanol in the gas still.
Yesterday the blower ran great, but the weedeater ran a little too great so I might dial it down to running 89octane instead. It is just that the weedeater seemed funny. I don't know if it was because of the fuel switch or what but I know that the difference in switching fuel made a good bit of difference.
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