Professional Soldiers ® - View Single Post - EPA blasted for requiring oil refiners to add type of fuel that's merely hypothetical

**The Reaper** · 06-25-2012, 18:08

Do NOT put AVGAS, 110LL, 100/130, Racing Gas, or anything else not rated for highway use in your post 70s car.

The higher octane stuff used straight will burn a hole in your pistons, and most of the above stuff has lead in it, which will royally screw up your modern engine, sensors, and catalytic converter.

I have run very limited quantities of AVGAS in an older points and plugs Harley with an S&S carb when I couldn't get good premium, but we were very careful to mix it in the right proportions to make premium grade street gas out of it and I had no electronics or cats to worrry about the lead damaging.

You can safely run leaded gas in most small engines, but if you put a very high octane gas in it like the AVGAS or racing fuel, you will almost certainly hole a piston.

You may be able to find a marine grade gasoline, but you have to check for the lead and frankly, I think it will be sufficiently annoying to find and pump that you will just stick with the ETOH contaminated pump gas for your car. It might be worth it for a can for small engines, if you Sta-Bil it right away and use it up in a year or so.

The dye in the gas allows the DoT to determine if you are using highway taxed fuel. Let's just say that if they find you on the road running untaxed fuel, they will not like it and will cause you pain. That is why heating kerosene, construction/farm diesel, and home heating fuel oil are a different color from highway diesel.

Best of luck.

TR

06-25-2012, 18:08	#10
The Reaper Quiet Professional Join Date: Jan 2004 Location: Free Pineland Posts: 24,816	Do NOT put AVGAS, 110LL, 100/130, Racing Gas, or anything else not rated for highway use in your post 70s car. The higher octane stuff used straight will burn a hole in your pistons, and most of the above stuff has lead in it, which will royally screw up your modern engine, sensors, and catalytic converter. I have run very limited quantities of AVGAS in an older points and plugs Harley with an S&S carb when I couldn't get good premium, but we were very careful to mix it in the right proportions to make premium grade street gas out of it and I had no electronics or cats to worrry about the lead damaging. You can safely run leaded gas in most small engines, but if you put a very high octane gas in it like the AVGAS or racing fuel, you will almost certainly hole a piston. You may be able to find a marine grade gasoline, but you have to check for the lead and frankly, I think it will be sufficiently annoying to find and pump that you will just stick with the ETOH contaminated pump gas for your car. It might be worth it for a can for small engines, if you Sta-Bil it right away and use it up in a year or so. The dye in the gas allows the DoT to determine if you are using highway taxed fuel. Let's just say that if they find you on the road running untaxed fuel, they will not like it and will cause you pain. That is why heating kerosene, construction/farm diesel, and home heating fuel oil are a different color from highway diesel. Best of luck. TR __________________ "It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat." - President Theodore Roosevelt, 1910 De Oppresso Liber 01/20/2025
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