91 to 94 depending where I go. I ran some 87 and the bike ran fine but felt a lot ssmoother with the 91. For the extra 8 cents a liter on a 10 liter fill I really won't loose sleep :)
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Originally Posted by Stevebis1
(Post 234623)
In NY 10% Ethanol is the standard. There is a station local to me that advertises no ethanol and I have confirmed I get about a 6%-7% better mileage on my TSX.
Ethanol has about 65% of the energy of gas. 90% gas and 10% ethanol gives you about 96.5% of the energy of pure gas. Also, in CA at least, the 10% ethanol is a maximum, so they could be putting in some amount less than that. Ethanol has a higher octane rating so I assume that means they're mixing it with lower octane gas to get to 87? |
Originally Posted by Just_Nick
(Post 234626)
You give your car too much credit.
Is it recognizing the fuel, no. Is it recognizing the O2 levels, yes. |
Originally Posted by CentralCoaster
(Post 234668)
I've heard this many times, although it doesn't quite add up, so there's got to be something else to it.
Ethanol has about 65% of the energy of gas. 90% gas and 10% ethanol gives you about 96.5% of the energy of pure gas. Also, in CA at least, the 10% ethanol is a maximum, so they could be putting in some amount less than that. Ethanol has a higher octane rating so I assume that means they're mixing it with lower octane gas to get to 87? |
Before i worry about what octane, i worry about who the fuel supplier is for each station..
I have a serious issue with ethanol. I work in the fuel industry and i have pulled out the sludge that water + ethanol + fuel create. normally fuel and water seperate, (and they set the tanks at an angle to try to keep the water out of your fuel) but we have noticed that with the addidtion of ethanol, they are starting to gel and bond together. Since working here, there are only a few gas stations that i will use (Valero being the main one) because of the quality of fuel and the lack of ethanol they use. If you guys saw the amount of sludge i have pulled out of shell station tanks, you would probably shit yourselves. Valero stations (at least around me) have the highest standards for tank testing and cleanout. The same goes for ultra low sulphur diesel. That shit is causing more problems than freightliner and international know how to deal with. |
Originally Posted by autoteach
(Post 234685)
Well, in fact, he is giving it the right amount of credit. It really is a matter of a chemistry problem. FI vehicles use an O2 sensor to monitor the air fuel mixture. The algorithm in the computer is look for "x" AMOUNT O2 in the exhaust. When the vehicle uses an oxygenated fuel like alcohol, the stoichiometric ration is different than pure gasoline, causing it to see this as a "lean" condition, or too much O2, and enriches the short term fuel trim until the correct amount, "x", is reached. If that fuel is used consistently, that enrichment becomes part of the long term fuel trim logic.
Is it recognizing the fuel, no. Is it recognizing the O2 levels, yes. |
Lame Poll, no 93 options, It's 93 Octain for me here in TN.....
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Originally Posted by LineArrayNut
(Post 233656)
9.4:1 , FTW
But with over 32,000 miles of carbon deposits in the combustion chamber, mine is now 9.5:1.:rolleyes: |
Originally Posted by CentralCoaster
(Post 234668)
I've heard this many times, although it doesn't quite add up, so there's got to be something else to it.
Ethanol has about 65% of the energy of gas. 90% gas and 10% ethanol gives you about 96.5% of the energy of pure gas. Also, in CA at least, the 10% ethanol is a maximum, so they could be putting in some amount less than that. Ethanol has a higher octane rating so I assume that means they're mixing it with lower octane gas to get to 87? I have nothing remotely repeatable about my Superhawk rides so I cant conclude anything about the non ethanol gas in my bike other that I have to turn up the idle slightly as compared to the ethanol spiked gas. |
Originally Posted by Mike996
(Post 234692)
Before i worry about what octane, i worry about who the fuel supplier is for each station..
I have a serious issue with ethanol. I work in the fuel industry and i have pulled out the sludge that water + ethanol + fuel create. normally fuel and water seperate, (and they set the tanks at an angle to try to keep the water out of your fuel) but we have noticed that with the addidtion of ethanol, they are starting to gel and bond together. Since working here, there are only a few gas stations that i will use (Valero being the main one) because of the quality of fuel and the lack of ethanol they use. If you guys saw the amount of sludge i have pulled out of shell station tanks, you would probably shit yourselves. Valero stations (at least around me) have the highest standards for tank testing and cleanout. The same goes for ultra low sulphur diesel. That shit is causing more problems than freightliner and international know how to deal with. |
I use 87 octane. We use "corn gas" (ethanol) here in Hawaii by State decree. Once every couple of months I will run a couple gallons of 100+ octane through it even though doing this probably has minimal effect on engine health. The exhaust smell from the high octane gas is very different from the 87 stuff.
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Originally Posted by nekkid
(Post 235263)
I use 87 octane. We use "corn gas" (ethanol) here in Hawaii by State decree. Once every couple of months I will run a couple gallons of 100+ octane through it even though doing this probably has minimal effect on engine health. The exhaust smell from the high octane gas is very different from the 87 stuff.
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Yes, Gasohol is what we use. Attracts water too. Regular gas is available for aircraft and boats because when their engines stop running, the consequences are a little more serious.
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Last Summer I repeatedly took the carbs off my sooz 750 to fix problems. I noticed after a 2-3 week period the ethanol seperated from the Gasoline. Small light brown blobs were floating on the bottom of the carb float bowls. It also froze all the jets on a friends bike because he let it sit too long. I now use a stabilizer or fuel treatment on any fillup. Especially on lawn mowers or snowblowers. Machines that may sit for a while without usage are at the highest risk. Car is unnecessary because its driven daily.
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well ill be going to get some sea foam today bike has been sitting all week and im getting paranoid.
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If you only ride occasionally, go to your local small airport a befriend a pilot. Airplanes run on 100 low lead. My SH loves this stuff. 100 octaine, NO ethonal (proven to be so bad for engines that is is banned from use in aircraft), and has addatives to prevent varnishing. This fuel stays good for years in the tank.
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Originally Posted by VTRsurfer
(Post 231030)
:popcorn:
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Originally Posted by Mike996
(Post 234692)
Before i worry about what octane, i worry about who the fuel supplier is for each station..
I have a serious issue with ethanol. I work in the fuel industry and i have pulled out the sludge that water + ethanol + fuel create. normally fuel and water seperate, (and they set the tanks at an angle to try to keep the water out of your fuel) but we have noticed that with the addidtion of ethanol, they are starting to gel and bond together. Since working here, there are only a few gas stations that i will use (Valero being the main one) because of the quality of fuel and the lack of ethanol they use. If you guys saw the amount of sludge i have pulled out of shell station tanks, you would probably shit yourselves. Valero stations (at least around me) have the highest standards for tank testing and cleanout. The same goes for ultra low sulphur diesel. That shit is causing more problems than freightliner and international know how to deal with. I'm seeing fuel go "stale" or "gum/jell" in as little as three weeks just sittng in small engines. Carb clean. Bummer.:banghead: |
I heard on the News recently the gov is upping the allowable level of ethanol to 20%. That'll suck. Avgas rules. I run fryer fat in my F250 and 93 in my SH.
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Originally Posted by VTS
(Post 245443)
I'm seeing fuel go "stale" or "gum/jell" in as little as three weeks just sittng in small engines. Carb clean. Bummer.:banghead:
I've heard it's due to the ethanol reacting with the water in the gas. Kinda reminds me of the problems with Dexcool. Works perfect in a laboratory, but in the real world, in a cooling system with air in it, it turns to jell-o. |
Fuel stations like Shell and Chevron really need to start offering an ethanol free fuel. Most likely it won't sell, as most don't know how bad it is for their car/cycle, environment, food prices, etc.... sigh.
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the gentleman that posted that they are upping the ethanol is true.ihave a friend who rides a beamer boxer and it would not run tore it done and all the gskts in the tank desintigrated and went into the injectors had to send it to dealer.the gskt. reacted to the gas and ethanol mix it was a older beamer
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I usuallly use 98 octane, but when I´m low on cash I use 95.
Somedays I use 99+ from Shell... |
I just got an '02 996 and my 1st thought was 91octane but after reading im thinkin ill drop dwn to 87
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I tore apart the carbs on my 99 suzuki and all the orings in there have disintegrated into little rock hard cheerios. It's been in California it's whole life.
Not a fan of ethanol. |
2000 VTR1000f owner's manual reccommended octane
I have my original owners manual for my 2000 SuperChicken & it says Any octane above 86 is safe to run in your bike. Not to exceed 10% Ethanol by volume. MTBE not more then 15% by volume. Methanol not to exceed 5% by volume. This come straight from page 77 & page 197
HONDA MOTOR CO., LTD.:D |
90 octane because that is what is available locally without ethanol, but it is $4.65/gal.:eek:
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