New ethanol 10% blend:mpg loss???
My local Shell station started selling this newfangled 10% ethanol blend since the last time I filled up my 2002 Cadillac. I went on a 70 mile highway trip and noticed a slight power loss and slight detonation, plus a huge(for this car) mpg loss. I used to get 25-26 mpg on the highway, now it's 21.5 mpg.
I see the future of the automobile, and will are all going to be driving glorified golfcarts(hybrids) in the future. |
You will lose a bit of gas mileage, though usually not more than 1 or 2 mpg. I have never heard of ethanol causing detonation though, it usually prevents detonation.
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On a side note, GM makes a big deal about their E85 capatible vehicles by throwing FlexFuel badges on them. We've got a 2004 Dodge Grand Caravan for a run around vehicle here at work. Inside the fuel door is a sticker indicating that E85 can be used with very little fanfare. |
I noticed one of those "Flex Fuel" badges on a car yesterday. I buy Exxon gas most of the time. I think it is about 10% Ethanol. I never really thought about it. My mileage is not as good as I think it should be. Maybe that's the reason.
Well, apparently now people are starving in the Third World so that we can have fuel for our cars . . . What a crazy world this is! |
Farm Aid.
We also now have E10 all year. My MPG goes down
3-5mpg with it. I thought alcohol would raise octane? Don't engines made for alcohol have higher compression? Tempted to use a lower grade gas to make up the mpg loss. @##$% welfare farming, special interests! |
Gee, this makes sense. Lets blend in a corn-based product that costs more in energy than it can save AND it takes more of it and the petrol that it is blended with to go the same distance.
Seems like BIG CORN has a better lobby than big oil. |
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I had a flex fuel vehicle once. In order to put a supercharger on it, I only needed a special program and a supercharger. However, if it wasn't flex fuel, you would need injectors. Why? Because FF has bigger injectors to make up for the lack of power. FF also has a sensor in the tank to detect E85 and then it can advance the timing and pulse width. |
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In any case, I would caution against it. I ran it in my truck and the E85 made sucky power and mileage. Not worth it, IMO. |
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The performance of E85 vehicles is potentially higher than that of gasoline vehicles because E85's high octane rating allows a much higher compression ratio, which translates into higher thermodynamic efficiency. However, FFVs that retain the capacity to run on gasoline alone can't really take advantage of this octane boost since they also need to be able to run on pump-grade gasoline. -------------------------------------------------------------------------- With turbo or supercharger more boost pressure can be used with E85. More boost is like higher compression in a NA engine. E85 also needs to run richer than gas, thus the poor mpg |
E10 was introduced about 1-2 years ago. You have been using it all along, just some stations are lazy about putting the sticker on the pump.
Yep it does suck, you cannot store it for more than 3-4 months. |
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That's gubment for ya...Side note: went to Philly this morning for a seni annual doctor appointment. about 230 miles RT. Started the morning with about 3/4 tank. Buurned it down to about 1/4. Gassed up when I got back @ 3.749 here for premuium. The car took $50.00 (for 13.33) gallons and hadn't topped out. So figure I burned 40.00 in gas, 3 bucks for the bridge toll and 4.00 to park. Almost 50.00 to go see a doctor. :eek: Two and a half times the copay of 20.00. First time I have ever spent 50.00 in gas for a car...(and more to come....:rolleyes:). And Jersey has been using blended fuel for many years. I used to notice poor feul economy only in winter. Now it's an all year round proposition I guess. The 124 has what, a 16 or 18 gal tank? 18x4.00=72.00:eek::eek::eek: BOHICA!!!! |
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Tom |
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Yes it does. Hence you cannot switch injectors from E85 cars to non. Totally different. |
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