SuzukiSavage.com - Fuel octane

Dave

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Re: Fuel octane
Reply #30 - 08/29/16 at 18:24:25

Kris01 wrote on 08/29/16 at 18:18:35:

I'm still not following. As far as I know, the only difference between leaded and unleaded gas was the addition of TEL in the leaded. Leaded gas was unleaded with the addition of lead. Scientist/Engineer or not, the math doesn't work out right.

It really doesn't matter now....cause you can't buy the same form of gasoline that was available then. But the "rumor" was that the unleaded needed a formula that had a higher resistance to detonation/knock with the lead missing......so when you mixed it with the leaded gasoline the lead fuel added even more resistance to the better blend of unleaded, and somehow the result has a higher octane than either fuel had alone. The internet wasn't around then, and I don't remember reading any magazine articles that proved the "rumor".

All that really isn't possible anymore...as the ethanol blends used today are completely different.

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Ruttly

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Re: Fuel octane
Reply #31 - 08/29/16 at 20:55:49

Dave , All I know was buddy of mine worked at a union 76 station and on Friday & Saturday nights,race nights,all the hot Rodders would come in and fill up with reg & super then head down to Canyada Rd our local illegal drag strip. It was like a car show at the gas station. Was much cheaper than race fuel. Had to be something to it and not just a rumor when 40 hod rods fueled up there before the drags !!!

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Dave

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Re: Fuel octane
Reply #32 - 08/30/16 at 03:38:02

Ruttly wrote on 08/29/16 at 20:55:49:

Dave , All I know was buddy of mine worked at a union 76 station and on Friday & Saturday nights,race nights,all the hot Rodders would come in and fill up with reg & super then head down to Canyada Rd our local illegal drag strip. It was like a car show at the gas station. Was much cheaper than race fuel. Had to be something to it and not just a rumor when 40 hod rods fueled up there before the drags !!!

I didn't say that it didn't work (or that a lot of folks didn't do it as they believe it worked)......I just never saw anything where actual testing proved it worked. I purposely did it a time or two as I had a 1957 Pontiac Cheiftain that liked a higher octane fuel, and I wanted to keep the lead to prevent valve recession.

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eau de sauvage

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Re: Fuel octane
Reply #33 - 08/30/16 at 06:06:41

Just checked the manual that came with the bike and lo and behold it looks like it's been addressed for the Australian market here's what it says...

Use unleaded with an octane rating of 91 or higher (research method), if pinking or knocking use higher octane or different brand.

Canada: your motorcycle requires regular unleaded with min pump octane of 87 (R+M)/2 method.

Oxygenated may be used without voiding warranty. Oxygenated contain oxygen carrying additives like MTBE (methyl tertiary butyl ether) or alcohol.

Gas containing MTBE may be used if the MTBE content is under 15%, this oxygenated fuel does not contain alcohol

Gasoline/Ethanol Blends: Gas and ethanol (grain alcohol) may be used if the ethanol content is under 10%

Gasoline/Methanol Fuels containing 5% or less methanol (wood alcohol) may be suitable if they contain co solvents and corrosion inhibitors. DO NOT USE fuels containing more than 5% methanol under any circumstances. Damage will occur.

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28886 L.A. California Gender:	Re: Fuel octane Reply #34 - 08/30/16 at 06:20:37 If you can copy into the tech section with the owners manual I'd appreciate it.
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Ruttly

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Re: Fuel octane
Reply #35 - 08/30/16 at 12:28:38

Dave , I don't know if it worked , may have been a mass hysteria type of thing , ya know monkey see monkey do. But they sure lined up for it ! One night the cops shutdown both ends of the road & busted everyone , police from 4 cities , sheriffs & highway patrol. So much fun , they decided not to arrest me (DIP) because all their cars were full of cuffnstuff. Sometimes you get lucky! My mom used to says God looks after drunks & fools.

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norm92de Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1180 El Paso TX Gender:	Re: Fuel octane Reply #36 - 08/30/16 at 12:40:55 Slightly off subject: I used to own a Subaru, gutless wonder, Anyway, it ran perfectly in the U.S. but in Mexico it detonated like a creature from hell. So much so that I was concerned about making it back to the States! :'( I don't remember what the compression ratio was. I should have retarded the ignition right then and there.
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Kris01 Serious Thumper Offline Eat, sleep, RIDE! Posts: 3767 Tennessee Gender:	Re: Fuel octane Reply #37 - 08/30/16 at 18:27:50 verslagen1 wrote on 08/30/16 at 06:20:37: If you can copy into the tech section with the owners manual I'd appreciate it.
Back to top	Untitled_017.jpg There's no problem that a full tank of gas and a sunny day can't fix! 2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor IP Logged

Kris01 Serious Thumper Offline Eat, sleep, RIDE! Posts: 3767 Tennessee Gender:	Re: Fuel octane Reply #38 - 08/30/16 at 18:28:48 .
Back to top	Untitled_018.jpg There's no problem that a full tank of gas and a sunny day can't fix! 2008 S40, Rotella T 15W-40 w/ZDDP added, Dyna, 140/90-15, Battery Tender Jr., Seat lift, #52.5/150/3 washers, Raptor IP Logged