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Fuel
- Thread starter bruiser
- Start date
Bob Denman
New member
I normally look for 91 octane, but have lately been throwing in some 93 since the price difference is negligible. (2 cents per gallon...)
bruiser
New member
I think I'll stay with 91 or higher. Fuel prices around here vary from morning to night. Yesterday i filled up at 2.69 for regular, today that same station has regular for 2.78. One station had reg at 2.69 and by afternoon had gone to 2.80. Premium is normally ten cents higher but I don't want to hurt the engine.
WackyDan
New member
You're not going to hurt the engine even on 87 octane as the computer adjusts for that.
Is there a difference? Technically no. Seat of the pants might tell you differently but that is subjective.
At the end of the day when you are using 6 gallons at a time, the extra cost of premium isn't that big a deal either. So to each their own.
Is there a difference? Technically no. Seat of the pants might tell you differently but that is subjective.
At the end of the day when you are using 6 gallons at a time, the extra cost of premium isn't that big a deal either. So to each their own.
LDFIREWORKS
New member
HIGHTEST ONLY
hyea:
hyea:
wukka
New member
So why does the manufacture recommend premium fuel when it will burn any grade you put in it with no discernable difference?
New Sharon Spyder
New member
87 octane Regular up here in the great state of Maine. I have run both my 08 for a year and 6,000 miles, traded for the RT and for 5,000 miles on the RT and both have run great.
If your bike, car or what ever is set up to use premium and you use 87
the on board computer will retard the timing, So there will be a slight lost of power. If you ride easy you'll won't notice it.
But most test riders don't ride easy, So when your selling bikes,your selling
performance. Fast 0 to 60 and 1/4 mile times sell bikes.
Bob Denman
New member
My very limited understanding of the whole octane issue, is that the higher-rated fuels have more anti-knock stuff in them... but they also don't start up as easily in real cold weather... I just don't know if that could be an issue, but I run the highest posible octane to hopefully give me some "wiggle-room" if I get a bad batch during a remote fillup...
opcorn:BLACK WIDOW
New member
Octane
:agree: I will say that (at least in my experience) there is more than a slight loss of power when the engine has to retard timing in order to accommodate a cheaper fuel.nojoke
:agree: I will say that (at least in my experience) there is more than a slight loss of power when the engine has to retard timing in order to accommodate a cheaper fuel.nojoke
Dragonrider
New member
Always 91 or higher in the states - on both my RS and RT, but I ran a couple of tanks of the no ethanol 104 octane Canadian gas, and the difference IS remarkable...
bruiser
New member
104!?!? Man, that sounds almost like AVGAS. I used to run 115 on the track in my 57 Nomad back in the late 60s.
NancysToy
Motorbike Professor
Canadian gas uses a different rating system...apples to oranges.
bikeguy
New member
I have always run Premium in my RT but, in this part of the world, that can vary a lot. Most Premium pumps are 91 octane with a few being 92, even fewer being 93, and some are only 90 octane. Most of the small towns where I gas up, including the town I live in, have only one or two gasoline stations so it's not like I have a choice. Brand names don't seem to matter. Frankly, I expect that the higher octane ratings have a higher percentage of ethanol since the pumps only say that the fuel may contain as much as 10% ethanol. I keep saying that I'm going to try a tank of regular but then I realize that it only costs 50 or 75 cents more to fill up with premium and go ahead and use premium again.
One advantage of using regular fuel versus premium is that it is probably much fresher fuel. I don't know what the percentage of regular versus premium fuel sold is but I'd bet that at least 75% of the gasoline sold locally is regular, probably even more. That means that premium is going to sit longer in the holding tank at the station and is much more likely to be contaminated by dirt, condensation, or just age.
Cotton
One advantage of using regular fuel versus premium is that it is probably much fresher fuel. I don't know what the percentage of regular versus premium fuel sold is but I'd bet that at least 75% of the gasoline sold locally is regular, probably even more. That means that premium is going to sit longer in the holding tank at the station and is much more likely to be contaminated by dirt, condensation, or just age.
Cotton
Dragonrider
New member
Canadians may use a different system, but this was the old Chevon "White Pump" - just what I used in my old Shelby GT500 KR... more important tho, was the "0" ethanol...
bruiser
New member
I wasn't aware of the Canadian rating. Last time I was anywhere near Canada was in 1971, coming back from a short duty tour in Germany we landed at Goose Bay Labrador for an RON and engine repairs.I think I remember drinking to much whiskey :lecturef_smilie:then. I'm going to stick to premium, I'll feel better about it. Gas here is running 2.79 to 2.80 for reg and about .10 cents more for 93 octane so it won't be that much more.
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