Octane rating
02-26-2017, 07:19 PM
#16
Rennlist Member
I think the Ultra94 up here does have Ethanol, but in Canada it can be hit and miss. It is added in sometime during the delivery process IIRC. I the next time I get some U94 I will take a sample and do the home test. I could always remove the Cats and run Aviation 100LL (Big Octane and always Zero Ethanol), but I think I would get a lot of CEL lights flashing at me. It is a bit tricky (aka illegal) to use in a car. The airport fuelers can only put it into an actual aircraft, no jerry cans allowed. But my current aircraft has 140 Gal fuel tanks, so I have a good built-in storage system 
I did run 100LL in a modified MGB back in the early 80s. It worked just fine, the CAT was removed and I was running high compression heads, but in those days the avgas access was a wee-bit easier.
Just joking
I did run 100LL in a modified MGB back in the early 80s. It worked just fine, the CAT was removed and I was running high compression heads, but in those days the avgas access was a wee-bit easier.
Just joking
02-26-2017, 07:47 PM
#17
There are still self-serve options at a lot of small airports in both the US and Canada. But you 'technically' are only suppose to buy that gas for use in an aircraft. But if I was questioned about putting some in a 5-Gal cans, I would say it is for my Piper Cub, which is back on my Farm Strip. At our main airport (YBW) I even had the fuel guy turn me down when I asked that he fill up my aircraft Tug, which needed about 5 Gals. I then said hey you know as soon as you leave I will drain 5 Gal from my wings, and then call you back to top up my aircraft. He swore, but did fill up my Tug.
You are right you would need a Gas Can with a Big *** Mouth, as the aviation style fillers are normally some 2" wide.
It is not 100LL, but another way to get ethanol free gas is to buy it from a marina. At least up here all Marine gas is still ethanol free. But it is still mostly 91 Octane. They will pump into cans, they leave it up to you to make sure that gas goes into a boat.
You are right you would need a Gas Can with a Big *** Mouth, as the aviation style fillers are normally some 2" wide.
It is not 100LL, but another way to get ethanol free gas is to buy it from a marina. At least up here all Marine gas is still ethanol free. But it is still mostly 91 Octane. They will pump into cans, they leave it up to you to make sure that gas goes into a boat.