As SirGCal points out there is a lot of incomplete info regarding premium fuel. Detonation occurs after spark ignition when fuel burns too quickly spiking the combustion pressure instead of building a steady increase. This excessively rapid pressure rise while the crank pin is still at a high angle (harder to turn) and before the piston is far enough down it's stroke to absorb the energy is often referred to and heard as "pinging".Higher octane fuel burns slower, but has more energy, but in that respect, are far more conducive to higher-compression engines. (less likely to burn well under low compression)
My apologiesTotally lost...should I be running reg or premium...
Power Commander V, Power Comander 5, PowercommanderRight........
Found this by searching this forum for "owner's manual"don't have one...so i just pick at your melon...so no matter what I am good with reg
Just click on
Gar,i am useing 90 oct with no etho in it 90% of the time.Ihave checked my fuel pump twice and no residue in it.From what i can tell the 90 oct dosen't hurt it.![]()
Good readingWill save you money and grief some day
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Like the good book says Bill ... 86 or higherGar,i am useing 90 oct with no etho in it 90% of the time.Ihave checked my fuel pump twice and no residue in it.From what i can tell the 90 oct dosen't hurt it.
Could be the reason im getting 50/52 to the gallon.Like the good book says Bill ... 86 or higher. Theoretically, the higher in octane you go above what you need the less energy is available at optimum crank angle due to the slower burning. Not likely we'd notice though
. Who knows, maybe premium would give me more power since I'm a plodder
seldom above 2500 rpm
. Lots of time to burn and time to kill
.