The standard high-octane fuel for aviation piston engines. hd4rob Well-known member. Lifetime Membership. The fuel will not hurt your bottom end. Relevance. For older high-performance airplane engines, especially those from the World War II-era (P-51 Mustang, P-38 Lightning, F4F Wildcat, F6F Hellcat) required octane ratings above 100. Even the LL (Low Lead) stuff will leave extremely damaging deposits in critical fine clearance parts that will lead to early wear. The octane rating of 100LL is approximately 100, which is above the rating of normal, frequently containing ethanol, automotive regular grade gasoline (87). AvGas is of interest to motoring enthusiasts because of its availability, octane rating and low price compared to commercial race fuels. AVgas tends to burn smoother than pump gas(probably because it is 100 octane) AVgas has some lead in it which is a lubricant (two stroke engines burn hotter and that extra lubrication can mean the difference between a running engine and a seized one. 3 Answers. 98% track and 2% trail. Your bike will be fine. I know that there is info on the web about using avgas part time in the rotax, and changing oil every 25 hours etc. i`ve always cut it 50/50 others reckon on a litre of oil per 25 litres , i mean water drain checks must be carried out so i must be doing an ecological favour right. 80/87 which is red and 100/130 which is blue. AvGas is held to tighter requirements than street gasoline, but not nearly as tight as is the entire line of Rockett Brand TM Racing Fuels. Some racing gasoline blenders use AvGas as a blending component to save money. Some racing gasoline blenders use AvGas as a blending component to save money. Unlike motor gasoline, which has been formulated since the 1970s to allow the use of platinum-content catalytic converters for pollution reduction, the most commonly used grades of avgas still … This is also a misconception. Avgas in itself wont give you any extra power, what it will let you do is run higher compression and or increase your ignition timming without detonation, thus giving more power. We use only the highest quality components since Avgas is an aviation fuel used in aircraft with spark-ignited internal combustion engines. I have an engineer friend who runs a couple of diesel Mercedes-Benz automobiles on Jet A with no probs. Can one use a reversible hash algorithm as a compression function? You're paying for all this Avgas and Avtur now aren't you chaps? AVgas tends to burn smoother than pump gas (probably because it is 100 octane) AVgas has some lead in it which is a lubricant (two stroke engines burn hotter and that extra lubrication can mean the difference between a running engine and a seized one. The racer must compensate for this by changing to richer (larger) jets in the carburetor when changing from racing gasoline to avgas. Technically speaking 87 Octane fuel will develop more power than 118 Octane fuel. I have raced two strokes or have been apart of a club effort racing them since I was 17, I'm 48 now. ban pilots from bringing their own fuel onto the field, there is no choice but to use 100% avgas. o.k fancy answers aside ill tell you it will....BUT. It is used extensively by motocross and other enthusiasts here, and their engines die for reasons other than 100LL. It's a 1978 RM250. You will not need to re-time the engine, for normal racing, however some people will choose to do so. Custom military tribute motorcycle $9,250 (col > Flushing, Ohio) pic hide this posting restore restore this posting. AvGas is held to tighter requirements than street gasoline, but not nearly as tight as is the entire line of Rockett Brand TM Racing Fuels. pinking) is detected. But you don't have a fuel pump so you don't have to worry, if you did, then you drain the gas after each use and get the tank dry and then put in a little regular gas to let it sit until your next use. I've run higher than what you propose octane fuel in RG500 Gamma's, NSR 250R's, CR's and RM's. For Rockett Brand TM Racing Fuels, we do not. I'm wondering if it will be okay to run 100 octane low-lead aviation fuel in my 2007 RM250 motocross bike (two-stroke). I don't have any remote intentions on trying this on my brand new 1000RR, or anyother bike, but just for curiosity does anybody know if its safe to use 100LL aviation grade Fuel on a motorcycle engine, I heard its possible but are there any disadvantages maybe advantages??? gallons of avgas does the job, but the lead will still destroy your cat so its only for older cars! It wont harm your motorcycle. I would not use AV … But since there is NO mogas available at any Southern California airports, the FBO's block new companies from moving in and selling it, and big aiports suchs as KSNA, KLGB, etc. Some injector pumps do have their own oil lube supply, but it does not lubricate the actual pumping element(s). The racer must compensate for this by changing to richer (larger) jets in the carburetor when changing from racing gasoline to avgas. My diesels` so noisy and sluggish avtur does`nt make bit of difference. Any kit for a 4th gen will work. So, once ethanol became the big thing in unleaded fuels, airplanes were forced back to leaded... Lead fouling of aircraft engines is seldom a problem with proper mixture and spark plug selection. Detonation occurs when the octane number is too low for the engine and its operating conditions. Change your plug or carry a spare The TEL may cause some fouling of the spark plugs. Jan 6, 2010 1,066 373 83 Lake Park, MN. Does a 1998 Suzuki Intruder 1500 (carbureted) Have a Ignition Distribution Adjustment. The airworthiness authorities are approving more and more aero engines to run on Mogas to keep light aviation in the air when supplies of Avgas run out. The currently available 100LL is a compromise fuel and has caused some lead fouling problems in older engines that weren't designed for it. Two years since the last rebuilt. Like someone else said, it isn't going to do a thing for you unless you increase the timing properly. 100 LL is still very high in lead content. Ethanol is illegal in airplanes. The biggest drawback of 100LL is the cost, and availability, since you will have to go to an airport to buy it. The myth that a higher octane fuel will damage your bottom end is exactly that, a myth. Most non-ethanol based fuel is rated at 90 octane and recommended for Motocross bikes. Instead of weighing about 6.1 to 6.3 pounds per gallon like racing gasoline, it weighs 5.8 to 5.9 pounds per gallon. AVGAS 100LL has TEL (tetra ethyl lead), locally about 1.3g / US Gal. Cody24. It is used extensively by motocross and other enthusiasts here, and their engines die for reasons other than 100LL.

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