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Old 08-21-2008, 11:25 AM   #9 (permalink)
johnmyster
EcoModding Lurker
 
Join Date: Aug 2008
Location: Virginia
Posts: 87

Brown Bus - '98 GMC Sonoma X-Cab SLS
90 day: 31.37 mpg (US)
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Quote:
Originally Posted by bennelson View Post
Great. Now I have to gas up, and reset my trip odometer so my next fuel log can reflect my new mod "disabled DRL".
On my truck, DRL puts the two high-beams in series so that they only see 6 volts each. Most headlight bulbs are in the 45-55 watt ballpark, right? So mine probably pulled 25 watts total in DRL mode.

Not much, but something. Don't think you'd ever notice 25 watts on tank by tank mileage. However, 2 amps saved on the charging system is significant if you go battery supported.
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