Was at local Wawa and they now have a pump dedicated to avjet fuel for airboats etc and I saw a guy filling his grader with it. I wondered what you think about using it for a 292. Thoughts?
I ask because I used to put 105 low lead in my mg. Years ago.


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So I put 4 gallons in a can and finished by putting the balance to $50 in the truck. Then I added $20 of 93 octane to the truck. It was at about an 1/8 when I got there. Now it's near 3/4. On the way home, an idiot decided to brake check me in the left lane. I hit the brakes hard twice and now they pull to the right when I use them. Going to climb under and check for leaking wheel cylinder.
distance from Wawa to home, about 10 miles. Ran good. No noticable difference yet.

 

I had a similar problem after a hard braking. It was a broken brake nail.

 

avgas

I did not know that you lived in Florida until you mentioned airboats. I had a cousin living near Haines City that had a 69 mustang mach I with a 351 C with higher than normal compression. He bought it that way and used avgas in it for a while until he figured out that it wasn't necessary. That must have been about 20 plus years ago. avgas was very pricey a gallon then and he had to go to an airport to buy it. There are a couple of gas stations near me that have methonal free gas which what I use in my truck. Good luck on the brakes.

 

I'll check it out as soon as I get time. Thanks for the input.
Everything is still stock. I checked the fluid level for the first time and it was about 1/2 full and dark. I drained the reservoir and refilled it with new dot3.
I remember resetting brakes on my old cars years ago when they would pull to one side. I would back up with the wheels straight and hit the brakes hard. Haven't tried that yet on this truck but if it doesn't work, I'll pull the drums and look things over.
Thanks again.

 

Haines City is not far. Been there many times. I am near St Cloud, just south of Orlando. Been here since the blizzard of 78-79.
My mustang was in Indy. Sold to a farm boy who later said that he put it in gear and drove it home and then it never started after that. It was built for the owner that sold it to the parts guy at a dealership. I knew his son and bought it right after that. It was a high compression motor with different heads and factory installed 3speed with a 12" clutch. I used to go through u-joints and tires a lot. Those were my teen years.

 

As far as 100LL Av Gas goes. Number 1 it has about 4 grams of TEL per gallon last time I checked. #2 it has been against the law to run leaded fuel on a US highway since 1996. It is unlikely that anyone will ever catch that though.
It isn't suited for automotive engines at all since aircraft engines are low compression, run at low rpm (2000-2500) at cruise and rarely encounter high air temps.
Also, it isn't rated the same as automotive fuel if it were rated the same it would be much lower than 100 oct.
But if you are looking for a little Oct boost and a little valve seat protection 1/2 gram of TEL will boost the OCT of premium unleaded 2-3 points.

 

Almost finished using up the mix of fuels mentioned above and so far, all's well. I will be getting a 1/2-3/4 tank full of regular gas soon so hopefully no harm done and life goes on.

 

Howdy,

I have run 80/87, 100/130, and later 100LL (straight and mixed with MOGAS) in my old 57 Ford (292) and it made no difference in power or operation. Just about all AVGAS has a RVP (Reid Vapor Pressure) of 7PSI, so if you are trying to get it to start in very cold temps it's a little harder to get it to vaporize.

You will not see much difference except for lead fouling on plugs with 100/130 and 100LL.... which is why ( other than the illegality) you wouldn't want to run it in a cat-convertor car....Lead kills a cat convertor. 80/87 and 100/130 is no longer available (80/87 and 100/130 had 0.5ml and 5ml TEL per gallon) (TEL= Tetra Ethyl Lead)

I lived in the oilfields in the 70's and ran what was commonly known as "Drip", "Condensate" and "Casinghead" "gasoline" which was so low in Octane that there would be "Pinging" under acceleration but it NEVER hurt the valves and seats. (neither did propane setups either) so I am a little skeptical of the "no-lead hurts the valves" "wives-tail" . AND, mixing a few gallons of 100/130 in an 18gallon tank completely stopped the pinging.


I know a LOT of people that ran thousands of miles on the stuff. One guy in particular bought a 79 Ford LTD (429 V-8) and ran it 100,000 miles before my dad bought it and all it ever got was "Drip gas". My dad drove it another 50-75K before he sold it!

Nowadays, I wouldn't run AVGAS in any car (because of the cat-convertor) But if I had a 70's "Muscle-Car" with high compression that pinged on premium, I would mix a little in there!

Cheers,

Rick

 

I've never burned it in my truck, but I use it for all my lawn equip, esp. 2-stroke. One of the benefits of avgas is it's a great solvent. It keeps your fuel system CLEAN. It also has a much higher shelf life than pump gas...by far. It's about $5.35 at my FBO which is pretty high if using it exclusively. For chainsaws, weed eaters, generator, and even my push mower, it's great. Oh it is also highly regulated, and incredible consistent no matter where it comes from. It's way more than just "gas".
My only caution if running on street, is that it has a very distinct smell when burned that might catch someone's attention. When I run it in my tractor, which burns a little oil, it smells just like a plane, and who doesn't like that!