Re: EPA and CAFE meddling

Posted by buickanddeere on December 31, 2011 at 08:18:48 from (216.183.159.14):

In Reply to: Re: EPA and CAFE meddling posted by Jon Hagen on December 30, 2011 at 17:07:05:

You are certainly correct about little to no gain in truck fuel efficiency.
The folks at CAFE and EPA either have no clue, believe in Star Trek tech is just around the corner. Or they are purposely trying to stop people from driving. I would lean towards the later 3rd option.
Given the mpg gains while thinking of the family's 1977 Chev 400 four barrel 4X4 with 3 speed auto obtaining 4-5mpg. Compared to my larger and more powerful 2003 4X4 crew cab with 13mpg just puttering around.
There is very little left to gain in engine efficiency, drivetrain looses, improved tires and improved aerodynamics.
Fuel hasn't increased in btu's per gallon either.
Here is a chart that also compares the cost of electricity vs. hydrocarbon fuels.

GGE - Gasoline Gallon Equivalent (US Gallons) Tables

Fuel - Liquid, US Gallons GGE GGE % BTU/Gal kWh/Gal
GGE Calculated for Gasoline in US Gallons at 114,000 BTU per Gallon
Gasoline (base)[2] 1.0000 100.00% 114,000 33.41
Gasoline (conventional, summer)[2] 0.9960 100.40% 114,500 33.56
Gasoline (conventional, winter)[2] 1.0130 98.72% 112,500 32.97
Gasoline (reformulated gasoline, ethanol)[2] 1.0190 98.14% 111,836 32.78
Gasoline (reformulated gasoline, ETBE)[2] 1.0190 98.14% 111,811 32.77
Gasoline (reformulated gasoline, MTBE)[2] 1.0200 98.04% 111,745 32.75
Gasoline (10% MBTE)[3] 1.0200 98.04% 112,000 32.83
Gasoline (regular unleaded)[4] 1.0000 100.00% 114,100 33.44
Diesel #2[4] 0.8800 113.64% 129,500 37.95
Biodiesel (B100)[4] 0.9600 104.17% 118,300 34.80
Bio Diesel (B20)[4] 0.9000 111.11% 127,250 37.12
Liquid natural gas (LNG)[4] 1.5362 65.10% 75,000 21.75
Liquefied petroleum gas (propane) (LPG)[4] 1.3500 74.04% 84,300 24.75
Methanol fuel (M100)[4] 2.0100 49.75% 56,800 16.62
Ethanol fuel (E100)[4] 1.5000 66.67% 76,100 22.27
Ethanol (E85)[4] 1.3900 71.94% 81,800 24.04
Jet fuel (naphtha)[5] 0.9700 103.09% 118,700 34.44
Jet fuel (kerosene)[5] 0.9000 111.11% 128,100 37.12
GGE calculated on Non-Liquid Fuels
Fuel - Non Liquid GGE GGE % BTU/unit kWh/Unit
Gasoline (base)[2] 1.0000 100.00% 114,000 BTU/gal 33.41
Compressed natural gas (CNG)[4] 126.67 cu ft (3.587 m3) 900 BTU/cu ft
Hydrogen at 101.325 kPa 357.37 cu ft 319 BTU/cu ft[6]
Hydrogen by weight 0.997 kg (2.198 lb)[7] 119.9 MJ/kg (51,500 BTU/lb)[8]
Nitromethane ~2.3 41.23% ~47,000 BTU/gal
Electricity 33.40 kilowatt-hours 3,413 BTU/(kW�h) [9][10] 33.40
Electricity Costs
for 1 GGE
1 GGE = 33.40 KWH
For Local Rate
Per KWH $/Gallon
Equivalent
$0.07 $2.338
$0.08 $2.670
$0.09 $3.006
$0.10 $3.340
$0.11 $3.674
$0.12 $4.000
$0.13 $4.342
$0.14 $4.670
$0.15 $5.010
$0.16 $5.344
$0.17 $5.678
$0.18 $6.012
$0.19 $6.346
$0.20 $6.680
$0.25 $8.350
$0.27 $9.018
$0.28 $9.352
$0.29 $9.686
$0.30 $10.020

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