The first 110 MPG production vehicle

[ai_vin]

Hey, what about the gallon of fossil fuel you had to put into the farm equipment and tractor trailer to get each gallon of ethanol to the pump?

[dcb]

The EPA (the people in charge of what you can claim for mpg) are not handing out 100mpg ratings for e85 vehicles. FYI, the FTC is looking for public input to help lynch these sort of mpg BS issues too.



claiming 110mpg and 400hp is obscene.

[aerohead]

Originally Posted by hp2g

EPA CAFE

[edit] Calculation
Fleet fuel economy is calculated using a harmonic mean, not a simple arithmetic mean (average).[3] The harmonic mean is the reciprocal of the average of the reciprocals of the fuel economies of the vehicles in the fleet. For a fleet composed of four different kinds of vehicles A, B, C, and D, produced in numbers nA, nB, nC, nD with fuel economies fA, fB, fC, fD the CAFE would be:




For example, a fleet of 4 vehicles getting 15, 13, 17, and 100 mpg has a CAFE of slightly less than 19 mpg:





The harmonic mean captures the fuel economy of the fleet for driving each car in the fleet for 1 mile while the arithmetic mean captures the fuel economy of the fleet for driving each car until one gallon of gas is burned (i.e. the 13 MPG vehicle would be driven for 13 miles while the 100 MPG vehicle would be driven for 100 miles).

For the purposes of CAFE, a manufacturer's car output is divided into a domestic fleet (vehicles with more than 75 percent U.S., Canadian or post-the North American Free Trade Agreement (NAFTA) Mexican content) and a foreign fleet (everything else). Each of these fleets must separately meet the requirements. The two-fleet requirement was developed by the United Automobile Workers (UAW) as a means to ensure job creation in the US. The UAW successfully lobbied Congress to write this provision into the enabling legislation. The UAW continues to advocate this position.[18] The two fleet rule for light trucks was removed in 1996.

Fuel economy calculation for alternative fuel vehicles multiplies the actual fuel used by a "Fuel Content" Factor of 0.15[19] as an incentive to develop alternative fuel vehicles.[20] Dual-fuel vehicles, such as E85 capable models, are taken as the average of this alternative fuel rating and its gasoline rate. Thus a dual-fuel E85 capable vehicle which gets 15 mpg on E-85 and 25 mpg on gasoline would be rated as 20 mpg for CAFE purposes, in spite of the fact that less than one percent of the fuel used in E85 capable vehicles is actually E85.[9]

Manufacturers are also allowed to earn CAFE "credits" in any year they exceed CAFE requirements, which they may use to offset deficiencies in other years. CAFE credits can be applied to the three years previous or three years subsequent to the year in which they are earned. The reason for this requirement is so that manufacturers are penalized only for persistent failure to meet the requirements, not for transient noncompliance due to market conditions.

I wanted to make sure I understood the quanta.A car that gets 25mpg on gasoline and 15 mpg with E-85,when it switches to the new engine gets 110 mpg on E-85.And I could go to EPA Mobile Sources,Ann Arbor,Michigan with the Mustang,put it on the Dyno,hook it up to the gas bag,and it would yield 110 mpg from an analysis of the byproducts of combustion?

[Frank Lee]

Easier yet, drive it 'til it quits from fuel exhaustion, put a gallon of- heck, whatever you want- and see how far it goes. Better yet, put doofus out in the middle of the Arizona desert with his Mustang and 1 gallon of fuel and see how he likes it.

[dcb]

Originally Posted by Frank Lee

...put doofus out in the middle of the Arizona desert with his Mustang and 1 gallon of fuel and see how he likes it.

Sorry, but LOL!!

[Coyote X]

Woohoo my Metro gets 418MPG when using E85

Now I just need to build a still so I can make some E85. I should make E99 so I can break 5000MPG!

[ai_vin]

Just to clear the air a bit: "E85 has an octane rating of 100–105 compared to regular gasoline's typical rating of 85–93. This allows it to be used in higher compression engines which tend to produce more power per unit of displacement than their gasoline counterparts. Since the reciprocating mass of the engine increases in proportion to the displacement of the engine E85 has a higher potential efficiency for an engine of equal power." However claiming to get 4X MPG out of a fuel with less BTUs is asking too much.

[Silveredwings]

Two words: Ignore List

[NachtRitter]

Originally Posted by Coyote X

Woohoo my Metro gets 418MPG when using E85

Makes the claim of the "first 110 MPG production vehicle" a bit misleading too ... and a bit of a yawner if we all start using the same conversion...

[MetroMPG]

I wonder if the OP has investigated a potential business arrangement with the FastSkinz people. Those foxbody Mustangs have pretty horrible aero - imagine being able to claim another 18-20% improvement!