Wha?
Conserve fuel?
Oh you mean vs. running the car. Yeah.
It really depends on how much stuff you have on. With the stereo playing loud and headlights on and all that, it's not going to last as long as if you turned the fan and everything off, but in that case why not just shut it off completely.
Last edited by Davey; 04-25-2015 at 09:26 AM.
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