if you are driving your Maverick at 20 thousand feet in the air aviation gas is the way to go because aviation gas has additives in it for AIRPLANES and high altitude not low compression 302 motors in Mavericks I agree that Premium gas is a total waste of money in a stock 302
Av gas has a red dye in it (Easier to see fuel leaks that way) Soo, if the gas po po do stick your tank...Its pretty obvious. Farm gas is like that too. The gas po po do check from time to time. Soo, dont look like a farmer in a farmers car/truck and you should be fine.
I have no idea. Most of my tanks were half fills to take advantage of the higher octane after the retune(11.5:1 SCR LOVES this stuff). Maybe with all the more stringent EPA laws these days? Maybe airplanes are more restricted from using it these days for fear of increasing pollution? And other than needlessly yanking chains as you like to do "on occasion" around here.. I also have no idea why you'd even care in the first place. Maybe you're an EPA mole and I've said way too much? The one thing that I do know is that before Ethanol conversions became popular.. it was cheap race gas for many and some are STILL using it today. While you're surfing around the net for "tangential ammo" maybe it's best to hunt down and ask those guys who still use it? Not too long ago, on the internet no less, I was told that there are two kinds of people in this world. Optimizers and satisfiers. The optimizers keep tuning no matter the combination of parts being used.. and the satisfiers are content with what can simply be bolted on. I must be both because I'm not satisfied until my engines are fully optimized for the collective parts being used. YMMV.
You missed the entire point of my point and was the only reason I ever brought it up in the first place. It's obviously for airplanes, hence the name AVGAS, but can ALSO be used by those with the tuning capability to squeeze that last bit of power for added performance. While E85 is best suited to higher compression for best results, it can also allow fatter torque curves on lower compression motors too. Not so much peak power which everyone get's caught up on.. but more AVERAGE POWER. Call any good dyno shop and they will set you straight as to the ignition tuning possibilities that it opens up. They will also tell you that gain vs the added cost and effort is just not worth it on the low compression stuff. aviation = HIGHER OCTANE E85 = HIGHER OCTANE Premium = HIGHER OCTANE HIGHER OCTANE = Greater tuning flexibility which enables MORE POWER POTENTIAL And Trix cereal ain't just for kids either.
you guys are all wasting your money on av gas, if you want higher octane for a day at the track just add 10% methanol to 94 octane and jet your carb 1.125 x larger (eg 75 jet x 1.125 = 84 jet) no more than 10% methanol you need to be exact. This will increase the octane by 5 points. Methanol is cheap and can be purchased at any hardware store. Keep in mind it is hygroscopic meaning it absorbs water and should be kept in a dry cool location. What do you think gas line antifreeze is. I run my drag car on methanol, my street car on gas/methanol and water/methanol for washer fluid. About the the only thing you cant do with it is drink it.
...that's one thing I can agree with you on... the topic was about gas, you brought up the the plane fuel...
That's funny.. I was going to add that to the above list too. But then we'd probably have gone from airplanes all the way to windshields.
says the man with 20,000 posts... and I think the discussion actually started out about HIGH OCTANE vs LOW OCTANE and its ability to "stall out a motor". I simply eluded to the fact that some folks use that kind of metric to TUNE more power into an engine. Dunno.. maybe this threads name might have something to do with it too?
I've got friends that run av gas, and have for more than 30 years with no problems. They do dump some Marvel Mystery oil in it since it is a little "dryer" than regular gas. I've always just run Super in all mine. Sure, putting more octane does not give more power, but being able to increase the timing brings more power. My old 460 that wasn't even a 9.0 compression engine, had a lot more power at 41 degrees timing, and I even sprayed a 175 shot on top of it without pulling timing out when called out in the lanes and didn't have time to adjust it. I don't remember what we had for octane in the 70's, but gas quality was sure better.
Different rating system was used but LEADED 103 octane was avail here on east coast... Premium(at least 99 octane) was required for any engine with 9.8 or so compression ratio...
I have to disagree. Back in the early 90's I worked at a Chevy dealer as a mechanic. Wee were having a lot of base Cavaliers come in with cold no starts. Beat our heads against wall trying:/checking everything. In the end the engineers figured it out. Yup you guessed it the new car owners were putting Hi test in instead if regular. The cars were actually designed for the lower 87 octane and the super wouldn't vaporize enough in a cold engine to light off,and then would eventually flood. . Go figure. Never say never.
