The evils of ethanol
Posted: 13 Aug 2015 18:01
I try to use ethanol-free fuel in my motorcycles whenever possible. It's expensive, but bikes use so little gas (both of mine get at least 50 MPG), it's a small price to pay.
Recently, someone (I forget who) questioned this practice, and stated that ethanol was "no big deal." I continued to seek out Pure Gas (see http://pure-gas.org/ for info and smart phone app) regardless.
In the "Service" (Q&A) section of the latest Cycle World (September 2015), there were two letters regarding ethanol's evils.
Thought I'd share...
ODE TO AVGAS
Q:
As the owner of several older motorcycles and a few pieces of gas-powered lawn equipment, I find myself constantly fighting the effects of ethanol in today's pump gas. My solution has been to pick up some low-lead avgas from my local airport. It has a long shelf life, doesn't absorb water, and allows my almost-40-year-old BMW to run better. All my smaller engines start and run without the annual rebuilding of the carburetors. A few well-respected shop owners and tech gurus I've talked to pooh-pooh the idea because of the illegality of it and the lead content, but for me, "The proof is in the pudding." Yesterday, I pulled my old Kawasaki KLX250 out of the shed. It probably hasn't been ridden more than 10 miles in 15 years, but it started on the second kick and ran flawlessly. Also, the original plastic gas tank mysteriously developed cracks after only two years, probably because of the ethanol. I know that Big Brother is probably reading this note, but I would appreciate your comments on the matter.
JOHN MORGAN
HOCKESSIN, DE
A:
About 10 years ago, some 50-plus-year-old avgas from stored WWII-era bombers and transports was drained and sold for use! That avgas was slightly different from the current 100 low-lead avgas, but any will last in storage almost indefinitely in a dry climate. The problem is the lead in the fuel. The EPA doesn't want millions of Americans using leaded fuel daily in their Escalades. The only reason piston-engine aircraft are still allowed to use it is they haven't found anything else that works. Evidently having fuel boil off at altitude isn't a desirable trait.
The ethanol pump fuel that has been foisted on us has many bad side effects, including being absorbed by most plastics (sorry, Ducati owners). There was a huge uproar when the first boaters to use it had their fiberglass fuel tanks dissolve and it glued their engines together. Try to find and use non-ethanol fuel. Marinas have to have it for boat use. Failing that, use fuel stabilizers all the time. Drain the mower tank and carb dry for storage. Maybe if enough people vote with their pocketbooks, we can put this whole ethanol nightmare behind us.
MORE ETHANOL LOVE
Q:
I live in Nebraska, and ethanol fuel is sold at every gas station. I try to go tostations that have regular unleaded fuel without ethanol, but sometimes out on the road in this part of the US, ethanol is the only fuel available. Are there any fuel additives you would suggest for my injected 2009 Kawasaki Vulcan to keep the fuel injectors clean and prevent carbon buildup?
"NEBRASKA MIKE" SIMON
A:
Ethanol bites, but if your bike (or car/truck/tractor) has EFI and is in regular use, the side effects aren't usually noticeable. Ethanol does lots of bad things, but fuel-injector deposits and carbon buildup aren't even on the radar. The most common problems are corrosion and varnish deposits in the fuel system, primarily the rusting/dissolving of the fuel tank, and varnish in carburetors and on inlet valve stems. These bad effects stem from how quickly it evaporates, how easily it absorbs moisture from the atmosphere, and the phase separation it goes through after as little as six months. Try to find non-ethanol fuel. Write your congressman. If stuck with ethanol, run your tank all the way empty before storing for the winter. Failing that, fill it to the brim with stabilizer in it. Any of the brand-name fuel stabilizers sold for ethanol will help negate the bad side effects.
Recently, someone (I forget who) questioned this practice, and stated that ethanol was "no big deal." I continued to seek out Pure Gas (see http://pure-gas.org/ for info and smart phone app) regardless.
In the "Service" (Q&A) section of the latest Cycle World (September 2015), there were two letters regarding ethanol's evils.
Thought I'd share...
ODE TO AVGAS
Q:
As the owner of several older motorcycles and a few pieces of gas-powered lawn equipment, I find myself constantly fighting the effects of ethanol in today's pump gas. My solution has been to pick up some low-lead avgas from my local airport. It has a long shelf life, doesn't absorb water, and allows my almost-40-year-old BMW to run better. All my smaller engines start and run without the annual rebuilding of the carburetors. A few well-respected shop owners and tech gurus I've talked to pooh-pooh the idea because of the illegality of it and the lead content, but for me, "The proof is in the pudding." Yesterday, I pulled my old Kawasaki KLX250 out of the shed. It probably hasn't been ridden more than 10 miles in 15 years, but it started on the second kick and ran flawlessly. Also, the original plastic gas tank mysteriously developed cracks after only two years, probably because of the ethanol. I know that Big Brother is probably reading this note, but I would appreciate your comments on the matter.
JOHN MORGAN
HOCKESSIN, DE
A:
About 10 years ago, some 50-plus-year-old avgas from stored WWII-era bombers and transports was drained and sold for use! That avgas was slightly different from the current 100 low-lead avgas, but any will last in storage almost indefinitely in a dry climate. The problem is the lead in the fuel. The EPA doesn't want millions of Americans using leaded fuel daily in their Escalades. The only reason piston-engine aircraft are still allowed to use it is they haven't found anything else that works. Evidently having fuel boil off at altitude isn't a desirable trait.
The ethanol pump fuel that has been foisted on us has many bad side effects, including being absorbed by most plastics (sorry, Ducati owners). There was a huge uproar when the first boaters to use it had their fiberglass fuel tanks dissolve and it glued their engines together. Try to find and use non-ethanol fuel. Marinas have to have it for boat use. Failing that, use fuel stabilizers all the time. Drain the mower tank and carb dry for storage. Maybe if enough people vote with their pocketbooks, we can put this whole ethanol nightmare behind us.
MORE ETHANOL LOVE
Q:
I live in Nebraska, and ethanol fuel is sold at every gas station. I try to go tostations that have regular unleaded fuel without ethanol, but sometimes out on the road in this part of the US, ethanol is the only fuel available. Are there any fuel additives you would suggest for my injected 2009 Kawasaki Vulcan to keep the fuel injectors clean and prevent carbon buildup?
"NEBRASKA MIKE" SIMON
A:
Ethanol bites, but if your bike (or car/truck/tractor) has EFI and is in regular use, the side effects aren't usually noticeable. Ethanol does lots of bad things, but fuel-injector deposits and carbon buildup aren't even on the radar. The most common problems are corrosion and varnish deposits in the fuel system, primarily the rusting/dissolving of the fuel tank, and varnish in carburetors and on inlet valve stems. These bad effects stem from how quickly it evaporates, how easily it absorbs moisture from the atmosphere, and the phase separation it goes through after as little as six months. Try to find non-ethanol fuel. Write your congressman. If stuck with ethanol, run your tank all the way empty before storing for the winter. Failing that, fill it to the brim with stabilizer in it. Any of the brand-name fuel stabilizers sold for ethanol will help negate the bad side effects.