[marthy]

The 09 has a 11.5 CR. Nothing to worry too much IMO using 87 pump gas. I would run premium regardless... but if I had option for E0, I would try it for sure.

 

[triplethreat]

You made up that quote? Sure ya did. I call b.s.

Yes, I did! It is a variance of the famous quote from Abraham Lincoln.....
You can fool some of the people some of the time,
You can fool some of the people all the time,
But you can't fool all the people all the time.

 

[Harry Balzak]

You call yourself a bullsh&tter and then in the same breath tell me you invented a saying. Was the joke too subtle?

 

[triplethreat]

Musta been!

 

[versysrider]

The damage done from 10% Ethanol fuel won't even remotely come close to the damage that can happen in the blink on an eye by using low octane fuel. Ever see a piston with a hole in it from pre ignition? I believe most modern engines and fuel systems are built to accept up to E10 fuel, If you're using the fuel up 10% Ethanol is fine. If the bike is sitting for long periods of time you should add Sea Foam or something like that to counteract the Hygroscopic properties Ethanol fuel has.

I can't get ethanol free fuel, but still run 87-89 RON from Safeway or Arco with no pre-ignition, or detonation. Been doing that forever, in all my cars, trucks, motorcycles, quads, boat. I asked a Yamaha mechanic once about running regular or mid grade fuel in a Yamaha that stated in the manual "Premium fuel required", he said I could probably get away with it, but "never run Arco gas, I've seen too many engines blown up using that". Long story-short, never had a problem, over 24,000 trouble free miles before I sold it. This engine is in a fairly low state of tune, with a fairly low compression ratio, I'm sure I'll have no problems.

 

[v2Bob]

Thanks for that data point Versysrider, I haven't decided what to do about gas, but it makes me feel a lot better about most gas pumps that use the same hose for 3 grades of gas. Some riders say to avoid those for a high octane bike, because if the customer before you bought regular you will get more of that than a car filling up with high octane would.



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[Croomrider]

Yes, I did! It is a variance of the famous quote from Abraham Lincoln.....
You can fool some of the people some of the time,
You can fool some of the people all the time,
But you can't fool all the people all the time.

I thought it was:
You can fool all of the people some of the time,
You can fool some of the people all the time,
But you can't fool all the people all the time.

Mike

 

[versysrider]

Thanks for that data point Versysrider, I haven't decided what to do about gas, but it makes me feel a lot better about most gas pumps that use the same hose for 3 grades of gas. Some riders say to avoid those for a high octane bike, because if the customer before you bought regular you will get more of that than a car filling up with high octane would.

Ya, no worries.

 

[stillkickin]

I use 93 octane, non ethanol gas in my '09er. It is a single pump, so I assume I would get some 87 and/or 91 every time I fill up, therefore, I don't think there would be any problem with it. My other two bikes have a slightly lower compression ratio than the 09, so I use 91 non ethanol in those as well as my riding mower, push mower and weed whacker,
Stay away from that abominable ETHANOL if you can. It is the fuel of the frickin' Devil!

 

[BlueRidge09]

Bureaucrats have been messing with the formula for gasoline for years. What we have to run anymore is crap. If you have in your tank for longer than one month, I would highly recommend using Sta-Bil.

 

[ak_rr]

What the 4th post said...

Else, you need NOS, 2 big bottles

 

[deadduck357]

I usually stay with the recommended octane with an engine. Why? because some engineer set up the engine for that type of octane, a higher octane will give you more horsepower, but that is usually minimal unless you have a new map for that type of fuel.

You run richer and increase the chances of backfires too.

Spot-on.

 

[deadduck357]

The higher octane does nothing for performance unless you actually need it. In fact your bike will make less power with higher than needed octane due to the higher octane fuel actually burning slower. We use high octane because it's more resistant to detonation. Unless you're using nitrous, a turbo, or very high compression, the added octane will only hinder performance rather than improve it.

This is not necessarily accurate. Yes, if you bike/engine is engineered from the factory to run premium then running either a lower or higher octane will deviate from factory tuning and cause the engine not to run optimum. The higher octane fuels burn longer not necessarily slower, which in turn they burn more efficiently. But that doesn't help running +100 if your engine is engineered to run on 91-93.

 

[marthy]

The temperature got a little chill here this week and my ride wasn't as smooth as usual. When I fill up this morning on my way to work this thread came up to my mind and fill up with reg fuel. Bike run great. Too early to say once do the rule or I just got a bad tank of gas (happen before) But my engine hasn't blew up yet... so far so good. No pinking

Sent from my SAMSUNG-SGH-I337 using Tapatalk

 

[Yoyodyne]

I think I posted this info before, but back when I had my 2001 VFR800 I initially filled it with premium and it was an absolute bitch to start on cold mornings. I eventually switched to regular and it started easy as pie after that. This was over numerous tanks of fuel so it wasn't due to contaminated gas. Moral-if your bike doesn't need premium, don't bother with it.

 

[redrider]

If your motor is stock always use the octane it was designed for, race gas will give you less HP and may not be as clean or fresh. Where I live I always try to use chevron from busy stations where you know the gas will be fresh. RR

 

[v2Bob]

Heh, this thread could devolve to one of those arguments about whether always do what the manual says or not.

I've heard before don't use higher than recommended octane for a stock engine, it's a waste etc. I'm new to the idea of using less than the octane recommendation, when, why, how do you know it's ok etc?

I just went to the tire pressure page of the owner's manual, 2 weight ranges, plus high speed, all the same psi..., hmm. If it's that goofy about psi how do you trust it about octane?



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[RichBinAZ]

...and it all depends on what the octane in the pump really is.
Here in AZ, they test AND post the results for everyone to see - sometimes the octane is good, sometimes bad. No matter what, all the fuel comes into Phoenix from 1 of 2 pipelines, so the individual fuel brands really have little to no control of what's in the tanks.
Inspection Detail

See if your states weights and measures department posts octane (fuel quality) results

 

[redrider]

Tire pressure and octane are like apples and oranges, a little less air pressure might affect the handling a little but too low of a octane rating could ruin a motor. Most of the time air pressure comes from the tire maker and they like to keep it high so they are covered if you ride two up overload ect. If you remember a few years ago Ford chose to run 26lbs in the firestones on there suvs and look what happened. Running max pressure means the tire will keep its shape under hard braking or acceleration . RR

 

[j-bird]

has anyone still had no problem with different grade fuels. I plan on using 93 octane that is ethanol free being this is the only non ethanol around where i live. Dont think that 93 would hardly be any different than 91 anyway. Thanks for any info anyone might have.