The Weather is HOT and the MPGs are UP! - Toyota Yaris Forums

thebarber · 07-28-2011, 12:12 PM

youll save 6mpg?

Kal-El · 07-28-2011, 12:37 PM

Yeah, there's no way you'd gain 6 mpg just from pre- heating your engine block.

Maybe in the first 2 minutes of driving, but then after that the temp is the same whether you pre- heated or not, thus not effecting MPG beyond a couple of minutes.

bronsin · 07-28-2011, 12:38 PM

Quote:

Originally Posted by thebarber

youll save 6mpg?

IF it saves 6 mpg.

The heater is 400 watts so 2 1/2 hours of electric is (in my area) 12 cents.

So you're looking at a savings of ~$700-800 over ten years total.

Thats at $4 per gallon and a 6 mpg improvement.

Easily worth it at those figures.

07-28-2011, 12:12 PM	#1
thebarber daily driver View User's Garage Drives: the #wrecho Join Date: Jun 2006 Location: Grand Rapids, MI Posts: 5,877	youll save 6mpg? __________________

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07-28-2011, 12:37 PM	#2
Kal-El Drives: 07 Yaris S Sedan 5-Speed Join Date: Oct 2008 Location: Massachusetts Posts: 2,179	Yeah, there's no way you'd gain 6 mpg just from pre- heating your engine block. Maybe in the first 2 minutes of driving, but then after that the temp is the same whether you pre- heated or not, thus not effecting MPG beyond a couple of minutes.