| Author | Message | ||
     Buellboy05 |
anyone know what running low lead fuels in a motor does? is it good or bad? | ||
| Davefl |
In a XB low lead fuel will render you oxygen sensor inoperable. | ||
| Cataract2 |
Thought they didn't sell lead fuel anymore. | ||
| Davefl |
101LL available at your local airport. | ||
| Fullpower |
DO NOT RUN 100LL or any other leaded fuel in your fuel injected Buell. 100LL actually has a very large amount of tetra-ethyl lead in it, and will instantly render your O2 sensor useless. your bike is designed and will run just fine on automotive unleaded pump gasoline. like they sell down at the gas station. | ||
| Tomzweifel |
I used to run a VW Rabbit Diesel on waste JP-8 with some light oil mixed in for the pump. Ran like a champ. Well, as champ like as a Rabbit Diesel gets, anyway. | ||
| Buellboy05 |
I know that it will kill the o2 sensor. I guess my real question was what will it do to the motor. say you run it in an old motor. someone told me that the lead helps to lube the motor. makes no sense to me. anyone know the specifics. | ||
| Fullpower |
i know for a fact that it will darken your oil fast, like in 100 miles or so. it will also leave deposits on the spark plugs after a couple hours. 100LL is useful in high compression engines. it doesnt take a whole lot to bring octane levels up. i blend it with unleaded pump gas for thrashing in a sportster with 205 PSI cranking pressure. takes most of the edge off the detonation at low rpms. also use 10 percent methanol in the blend when i want to go fast. for a low compression street motor it is completely unnecessary. | ||
| Izzinya |
im with fullpower on this on my bigtwin w 12-1 comp i mix 4-1 110 oct. only at the track the buell injection wont handle that kind of fuell well works great on 92 at the pump Izzinya  | ||
| Davefl |
My father uses 101LL all the time in his RV6A while cruising at 180MPH. | ||
| Metalstorm |
If it's a real old engine (like say a 67' Chevy Impala) I've heard the lead lubed the valves & valve stems but I'm not sure how true this is.. Modern engines have steel valves stems now & do not need lead. My Dad used to buy "lead substitute" for his Impala when leaded gas disappeared but I think he stopped buying it a few years ago and the engine's still running strong. Stock 283, 290K miles and still purrs like a kitten. | ||
| Krassh |
http://yosemite.epa.gov/r10/AIRPAGE.NSF/0/adebd4b8879d36bc88256c0800760bf5?OpenD ocument "Pre-1971 engines were equipped with "soft" valve seats and leaded gasoline acted as a lubricant to prevent excessive wear of the valve seats. Using these engines with unleaded fuel in high-speed/high-load situations could result in some valve seat wear. (Boats, some farm equipment, and tow vehicles may be included in this category.) Substitute lubricant additives are available at auto supply stores to help this situation. In addition, valve seats are usually replaced with at the time an older engine is rebuilt." |
