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100% gasoline.

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tomshobby said:
It seems local stations are making ethanol-free fuel available.
Not sure if it is better or worse but might try a tank full.

https://www.madison.com/wsj/home/biz/288841
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<span style="color: #990000">Hey Tom !!

I'd buy it in a heartbeat! A auto expert I ain't but boating I know.
That ethanol is dangerous crap that ruins marine engines, rots
marine hoses, melts plastic fuel tanks and causes bilge explosions.

I can't think it's any much better in autos. I always dump a
can of gas treatment into my Triumph when I fill up.

dale</span>
 
When I can find it thats what I buy even if it costs more as in the end it costs much less. With my truck at current gas prices ethanol costs me an extra 6 dollars a tank over strait gasoline.

Ethanol needs to be banned as a motor fuel.
 
Tom, I only hope that this trend starts to come my way.... Buy it, use it, it is SO much better for your car!

I used to work at a power equipment dealership, and our service department was constantly busy with ethanol fuel-related problems. It degrades very quickly, hence the booming business for makers of Stabil and similar fuel stabilisers! Nasty, nasty stuff.

Any time that you can buy 100% gasoline, go for it!
 
We don't have any stations that sell gas with ethanol. Hopefully it will stay that way.
 
waltesefalcon said:
We don't have any stations that sell gas with ethanol. Hopefully it will stay that way.
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Same here, for the most part.
 
Ditto in at least my part of Fl. and I hope it stays that way!!!
 
You can't buy gas up here without it. Even with all the horror stories I've heard about ethanol, I've never had any trouble with it. Porsche don't recommend you use it, but I had a 944 Turbo and ran on it for 8 years without a problem other than crappy mileage My karmann ghia likes it, but it will run on anything. I haven't had the Lotus long enough to tell.
 
We've a few stations left with 100%...one of my close-by Chevrons just put up the 10% ethanol sign...lost my business!
 
I would have thought the Cheveron label would have lost your business before, just with the Cesar Chavez association!! :wink:
 
Its the only station in my little village!
 
Better get used to Ethanol. It's coming to a gas station near you. I've only had problems in cars with older rubber bits. If you have new rubber in the fuel system, meaning no more than 3 years old, you should have no problems whatsoever. No one should have rubber older than that in their fuel system anyway!
 
bugimike said:
I would have thought the Cheveron label would have lost your business before, just with the Cesar Chavez association!! :wink:
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That would be Citgo. Chevron is an American company.
 
Steve_S said:
Better get used to Ethanol. It's coming to a gas station near you. I've only had problems in cars with older rubber bits. If you have new rubber in the fuel system, meaning no more than 3 years old, you should have no problems whatsoever. No one should have rubber older than that in their fuel system anyway!
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I don't understand what all of the fuss is about. We in the Midwest have had this stuff in our gas since the early '80s and I have never had a problem with the fuel. The one thing you will probably notice right away is that your economy will go down a bit but the change in performance is imperceptible.
Another thing about having ethanol in the tank is that you will not have water in it. The ethanol has a high affinity for water and acts as a fuel system dryer.
I too would rather have pure gasoline but that has not been the case here for a long time.
 
Pure gasoline of course works better, but that site claims that 15% alcohol in the fuel reduces gas mileage by 25%. I simply don't believe this. (and I have a masters in internal combustion control systems) The energy of the remaining 85% gasoline is still there! (46.9 MJ/kg according to this site) Alcohol also contains energy, though not quite as much as gasoline (30 MJ/kg). The combination of 85% gasoline and 15% alcohol gives 94.6% of the energy of the 100% gasoline. This simply will not reduce the gas mileage by 25%. It will probably reduce the mileage by 5.4% if the engine is otherwise adjusted to accept the lower energy level (timing). Of course the fuel system must be modified to accept alcohol in the fuel (just like with fuel line antifreeze).
You might want to consider the fact that other internal combustion engines have been using alcohol for years with very good results (Top fuel dragsters, Brazilian and South African cars come immediately to mind)
 
got me curious now ...

anyone got any other *reliable* source that compares ethanol-enhanced, E85, and non-ethanol gasoline at equivalent octane ratings? energy, mpg, etc.? Here's some USA DOE info:

https://www.eia.doe.gov/oiaf/analysispaper/biomass.html

Excerpt: <span style="font-style: italic">"E10 (10 percent ethanol) has 3.3 percent less energy content per gallon than conventional gasoline. E85 (which currently averages 74 percent ethanol by volume) has 24.1 percent less energy per gallon than conventional gasoline. AEO2007 (Annual Energy Outlook for 2007) assumes that engine thermal efficiency remains the same whether the vehicle burns conventional gasoline, E10, or E85. This means that 1.03 gallons of E10 or 1.32 gallons of E85 are needed for a vehicle to cover the same distance that it would with a gallon of conventional gasoline. Although the difference is not expected to have a significant effect on purchases of E10, AEO2007 assumes that motorists whose vehicles are able to run on E85 or conventional gasoline will compare the two fuels on the basis of price per unit of energy."</span>

The chart is tough to read unless you download it as pdf, but here's a summary:

Using conventional 87 octane gasoline as the "standard energy measurement" (100%), fuel ethanol (100% ethanol) is only 67% the energy of conventional gasoline. E85 (74% blend ethanol) is 76% the energy of conventional gasoline, petroleum diesel is 111% the energy of conventional gasoline, and B100 biodiesel is 103% the energy.

I've heard that E85 (85% ethanol) has 25-35% less "energy", but has an octane rating of 104. lots of details to think about ....

Thanks.
Tom
 
My mistake. I read that the fuel was 85% gasoline, when in fact it is 85% alcohol (volume ~ ). This makes a big difference in the energy available. Having density of .711 for gasoline and .789 for ethanol, energy density is (46.9*.15*.711+30*.85*.789)/(46.9*.711) implying that E85 has about 75.3% of the energy of gasoline per gallon (or per litre)
 
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