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Old 01-15-2013, 11:41 AM   #19 (permalink)
christofoo
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Quote:
Originally Posted by christofoo View Post
...
Assuming 37kWhr/gal for gasoline:
'Eco' bulbs: reduction of 20W/50%(efficiency) = 0.0011 gal/hr
HID: 0.0022 gal/hr
Leave it to me to be off by an order of magnitude.

Efficiency should be ~30% ICE X ~50% alt = ~15%

'Eco' bulbs: reduction of 20W/15%(efficiency) = 0.015 gal/hr
HID (hypothetically): 0.03 gal/hr
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