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Higher octane rating won't hurt a thing except your wallet. LL Avgas might have an effect on your O2 sensors, but probably not in the quantities you're talking about. Biggest problem with avgas is that it's flash-point and additives are blended to perform for low-temperature, constant RPM applications. All octane (or octane-rating boosters like toluol) does is slow down the flame front to prevent detonation.
Dealer fed you a line of BS, because you let him. Don't be lazy and do a little research.
If I can offer some words on octane I will. I make gas for a living. Snipped.....
Some aviation motors have polished almost like chrome cylinder sleeves so they don't require as much lubricant.
No.
I've seen people burn up car motors trying to run that in a hopped up ricer. Good thing it didn't happen to an American muscle car, we could afford to loose more ricers.
No.
Any ways, simply put, if it calls for 89 or 91 or whatever, run what the manual tells you too.
Running "race gas" in any motor without a tune for it and/or higher compression not only wastes your money, but will actually decrease performance. Xsquid is on the money.
Yes AVGAS has less lube in it. Unless the refinery that you work in does things a little different that the one I work in.
Yes I have seen some ricers burn their motors up at Milan dragway as a matter of fact. To answer your next question, no they were not spraying so there was no lack of fuel.
Glad you agree with me at least on the octane rating. Although, on the lubrication factor pertaining to AVGAS I will tell the refinery manager that he is sending bad product down the line. LOL...
Working in a refinery doesn't make you a gas expert or chemist.
Nor an A&P Mechanic.
Chrome cylinders aren't "chrome" like on yer pipes. More likely to be Nikasil or another plating material.
Ricers didn't blow up because of fuel lubricity. Didn't happen.
Fuel lubricity is not a major concern in the combustion chamber, and is only recently a concern as wear in high-pressure fuel pump longevity. Fuel lubricity IS a concern for older valve stems and guides, such as what may be found in older design aircraft engines i.e., Lyc and Contis. That's why you can still find LL.
k, thanks for all the info, oh and i did not let the dealer feed me a line of BS as a matter of fact I told him he was stoned or on crack and then called my local mech, also I was just curious what if any affect it had on the fuel injected systems obviously none. And yes I am very grateful to have a brand new Harley and thought at the time it would be better for the bike to run the higher octane gas since I always see people getting dogged on for running to low octane and not spending the extra cents for the good stuff, and yes I know that you gain no peroformance increase unless you have high compression pistons. Any way the bike is fine running great and still smells good even though I drained the 110 and filled up with 93.
Working in a refinery doesn't make you a gas expert or chemist.
Nor an A&P Mechanic.
Chrome cylinders aren't "chrome" like on yer pipes. More likely to be Nikasil or another plating material.
Ricers didn't blow up because of fuel lubricity. Didn't happen.
Fuel lubricity is not a major concern in the combustion chamber, and is only recently a concern as wear in high-pressure fuel pump longevity. Fuel lubricity IS a concern for older valve stems and guides, such as what may be found in older design aircraft engines i.e., Lyc and Contis. That's why you can still find LL.
Never claimed to be a chemist. Just a refiner that happens to work with gasoline and other hydrocarbon products on a daily basis. Chemistry degree is coming along though, thanks for asking. Also, never claimed to be a A&P mechanic either but thanks again for your concern. That was how it was explained to me by, yes an A&P mechanic. But overall, I am glad to see that you hold both titles as Chemmist and airframe mechanic. We'll have to keep your versitality in mind when it comes to obscure questions that most can't answer.
Working in a lab at a refinery as well as operations has given me sometime to learn more than the average Joe about gasoline. I work with testing octane ratings as it is being made. Also, testing raw gsaoline for C4's and lighter hydrocarbons that can still be recovered to send off to the polyporpelene unit and taking the C2's out all together. But I'm sure you know how the basic distillation process in a refinery works.
I do know the products that I work with daily. Like I mentioned earlier, the refinery that your in might add lubricants to AVGAS later down the line after it hits sales but ours doesn't. I'm not as versed as to how other refiners finish their products prior to blending or sales. Thanks for setting me straight in the petrochemical industry.
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