I would stick with the owners manual fuel recommendations. 8)zero260 said:With gas prices what they are now, I'm wondering if it is necessary to burn premium 91 octane gas in my Mean Streak? My friend who owns a Harley Road King says he burns the mid-range 89 octane and has no problems at all. Thanks
well guess what, i went from 80-90deg. days with 60% humidity to 100-110+ deg. w/ 15-20% humidity and i still use 87octane gas with NO PING/KNOCK in either place. :roll:1RAASTA said:no dis, but that inline 4 cylinder will not (KNOCK) as quick as any v twin and it also depends on if its a hot day, warmer days will cause detonation in the cylinders very easily, so stay close to reqirements high gas prices is much cheaper than a rebuild, ride safe.
I'm with BFC on this one. I thought about running cheap gas in my truck that has a 22 gallon tank. It hates it and spark knocks like no other. I thought about the fact that the 20 cent price difference between the 87 and the 93 would calculate out to $4.40 for a whole tank of gas. Is it really worth the $1.00 per tank (mine is 5 gallons)? Not to me!BFC said:We're talking about 60 cents a tank!! Come on, you can't tell me that money is an issue!!! I ride over 1000 miles a month at 40 MPG it's less than $15 a month extra for the recommended gas.
It will take 4 months (if you ride as much as me) to pay for 1 hour labor to have a shop look at your bike if something did happen. You a gambling man? this is a no brainer if you ask me, not to mention the possible waranty issue (if you care about such a thing, I don't, I am my own warranty station)
gives new meaning to splitting hairs...... :wink: 8)
i dont see the common sense here. if the bike doesnt NEED high octane then why buy it ???????risdo said:I run high octane all the time, no matter what. It's just good common sense.
COMPLETELY AND ABSOLUTE APPLES TO ORANGES !!! you cant compare OLD CAR technology to new bike technology. the busa is 13:1 and runs on 87 just fine.1RAASTA said:hey bud i hear what ya talking about i sometimes sneak a little 89 into my 69 ss (10 1/2 to 1 comp). it will run on it, just wont pull like normal, i guess the dealer has to use some type of octane rating why not use the highest. ride safe.
Enjoy the ride.The compression ratio of your engine determines the octane rating of the gas you must use in the car or bike. One way to increase the horsepower of an engine of a given displacement is to increase its compression ratio. So a "high-performance engine" has a higher compression ratio and requires higher-octane fuel. The advantage of a high compression ratio is that it gives your engine a higher horsepower rating for a given engine weight -- that is what makes the engine "high performance." The disadvantage is that the gasoline for your engine costs more.