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[Cvo dude]

Heading to sturgis shortly and taking the 2lane back roads not many stations care premium fuel should I,or do I need to add an octane booster or additive as such to the gas or just gas and go.

[Twolanerider]

You may or may not get the fuel you'd most desire.  Octane boosters are snake oil though.  Check the label for the actual increase the OTC stuff really makes. 

[ob1]

www.bndautomotive.com   aces 4...  i use it in my audi apr tuned 100 octane program with reg 93 shell. 1 oz per 6 gal to achieve 102 effect.

[Twolanerider]

www.bndautomotive.com   aces 4...  i use it in my audi apr tuned 100 octane program with reg 93 shell. 1 oz per 6 gal to achieve 102 effect.

Got to have serious questions about any product that in its opening sales pitch starts off with "higher octane fuel power."  Octane ratings (all of the several different ratings methods) are anti-knock ratings.  A higher octane fuel is not a more "powerful" fuel."  

That entire web page may or may not represent a worthwhile product for some specific purpose.  But it reads as if it was written by Elmer Gantry.

[HILLSIDECYCLE.COM]

Fuel modifiers, is probably a better term.
Amsoil, or Lucas seem to be 2 that folks over this way have noticed a difference, when used.
Scott

[dlaws01]

A couple of moth balls in at each fill up ought to take care of low octane issues.   

[ob1]

Good point Don, i can only speak of the 22 horsepower gain in my car on a dyno at the rear wheels between the 93 and 100 octane audi performance racing fuel settings and fuel and timing maps. Trust me, i thought it was snake oil at first, but seeing was truly believing for me. Brian, the chemist and producer can speak all the technical jargon if needed. its benefits are well documented on performance car setting and i know my bike runs much better with it in hot weather. I have no vested interest but to share the benefits i have seen myself and others close have conveyed to me.

Tim

[ob1]

www.oxyol.com/html/product2b.htm

[Twolanerider]

Good point Don, i can only speak of the 22 horsepower gain in my car on a dyno at the rear wheels between the 93 and 100 octane audi performance racing fuel settings and fuel and timing maps. Trust me, i thought it was snake oil at first, but seeing was truly believing for me. Brian, the chemist and producer can speak all the technical jargon if needed. its benefits are well documented on performance car setting and i know my bike runs much better with it in hot weather. I have no vested interest but to share the benefits i have seen myself and others close have conveyed to me.

Tim

You said something there that begs further question Tim.  A higher octane fuel, in and of itself, isn't a a more powerful fuel.  A higher octane rating by itself won't make the engine run "better."  That same higher octane fuel might, however, allow a different and better performing tune to be run.  Better detonation protection could, for the simplest example, allow a more advanced timing curve.

When the car did it's before and after on the dyno was the only difference the fuel?  Or am I reading correctly that timing maps were also altered.  If so while the fuel itself might not have accounted for any significant performance increase an improved fuel load might allow for a better performing map to be run.

Having said all that the common octane boosters (packaging suggestions notwithstanding) actually boost measured octane levels so slightly it's hard not to be wary of the truly significant suggested gains with this product.  Even more so with the slightly infomercial-ish presentation that seems to ring from their website.

[Doc 1]

Heading to sturgis shortly and taking the 2lane back roads not many stations care premium fuel should I,or do I need to add an octane booster or additive as such to the gas or just gas and go.

Be careful with fuel additives....they will destroy your 02 sensors very quickly.
Doc

[sadunbar]

Be careful with fuel additives....they will destroy your 02 sensors very quickly.
Doc

And will foul your spark plugs in short order...

[HILLSIDECYCLE.COM]

Had some leftover race gas from our AHDRA Mod bike(it was still fresh)years ago, and prior to leaving here one night, the lawn at the shop needed a hair cut, as I am a machinist/custodian/psychologist/lawn care specialist.....etc.
Nothing in any can, except the C14.
Lawnmower would NOT even run, or for that matter, even start.
Ran to the local store, and after draining the hot-rod gas, mowed the lawn.
Engines will only respond to the fuel they were designed to run on.
Scott

[Wizard45]

Talking about hitting gas stations that you are unaccustomed to hits home to me.
I was on a road trip 3 weeks ago and found a gas station with 93 octane. Filled the tank. Half way through the tank I noticed my bike become very un responsive at 2500 rpm and above. Within another 20 miles I could barley go beyond idle.
I am sure we have all ran into bad gas. Luckily found a dealer and they had a vile of high octane boost.
Told me to dump in full bottle (good for 6 gallons) and only use gas from a very busy gas station.
What happens because of all the ethanol added anymore and the lack of customers willing to pay for premium.sometimes premium gas can sit for months at a small traffic gas station and go stale in easy terms.
I always(just in case) carry a bottle of high octane boost. Not so much to have a strong running bike but in case I find bad gas. It will get you through to the next (busy) gas station.

[dlaws01]

You can always run by the local municipal airport and get some 100 octane low lead.

[Twolanerider]

You can always run by the local municipal airport and get some 100 octane low lead.

...and ruin your o2 sensors and catalytic converter.  And it's still AvGas.  Assuming the FBO would even sell it out the door (they wouldn't put it in street car or bike) it's still not mixed the same as fuel at the corner pump.  Even 100LL has a lot of lead compared to street fuels.  Something like 1/2 gram per liter.  Low lead in this case is a very relative thing. 

It's also a bit of a chimera that just getting AvGas means you're hot rod (or hot bike) is actually going to run better even if you don't consider the o2 sensors and catalyst damage. It's designed for an engine spinning a propeller.  Generally large bore, long stroke, lower RPM applications.  Even though the higher octane, in and of itself might be useful the rest of the package doesn't make it ideal smaller-bore, shorter-stroke, high-rpm engines.  AvGas is less volatile.  Even if used as a mix if you go over roughly 1/2 and 1/2 cold starting could be tougher and low RPM drivability might not be as good.  Since the specific gravity is lower you'd need to retune for AFR.

There are other issues with other constituent parts of the blend also.  Though all that's enough to let me keep AvGas in the Cessna and street gas in the Harley.