Newby MPG Questions (Look out!) - Page 2 - Toyota Yaris Forums

why? · 12-17-2009, 06:56 PM

I am pretty sure real winter tires do hurt mpg by a few.

jonismyname · 12-17-2009, 07:00 PM

can't say with certainty, but im pretty confident they'll be different. different throttle bodies, different engine bays, ect ect.

Yaris Hilton · 12-17-2009, 08:59 PM

They're different, and located differently in the engine compartment.

Something you seriously should check is the wheel alignment. If the wheels are out of line, the tires are constantly scrubbing.

41magmag41 · 12-20-2009, 11:09 AM

A couple of things on this issue of winter driving. You will take a 5 or so mpg drop during the winter. ( I live in New Hampshire) The first item is it takes the car longer to warm up and to be able to shift into overdrive, 4th. If you are running snow tires this will also drop the mpg. And finally running the defroster will cycle the compressor on the ac unit thus causing more load on the engine. I average about 39 to 41 during the summer and when the temp drops I drop to 35 to 37. I use the ac in the summer and drive rather aggressively. I've had my girl 3 plus years with 70K on her and this mpg drop in the winter is a fact of life if you live in a cold climate.

12-17-2009, 06:56 PM	#1
why? Only Happy When it Rains View User's Garage Drives: Yaris LB Join Date: Jan 2006 Location: harnett county NC Posts: 4,097	I am pretty sure real winter tires do hurt mpg by a few. __________________ Colin Chapman disciple

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12-17-2009, 07:00 PM	#2
jonismyname Drives: 08 liftback 5spd Join Date: Oct 2008 Location: adirondacks, ny Posts: 220	can't say with certainty, but im pretty confident they'll be different. different throttle bodies, different engine bays, ect ect.

12-17-2009, 08:59 PM	#3
Yaris Hilton Half a Bubble Off Plumb Drives: 2009 Yaris Sedan Join Date: Mar 2009 Location: Bristol, Tennessee, USA Posts: 1,593	They're different, and located differently in the engine compartment. Something you seriously should check is the wheel alignment. If the wheels are out of line, the tires are constantly scrubbing.

12-20-2009, 11:09 AM	#4
41magmag41 Drives: Loaded 2007 mica silver sedan Join Date: Sep 2007 Location: New hampshire Posts: 226	A couple of things on this issue of winter driving. You will take a 5 or so mpg drop during the winter. ( I live in New Hampshire) The first item is it takes the car longer to warm up and to be able to shift into overdrive, 4th. If you are running snow tires this will also drop the mpg. And finally running the defroster will cycle the compressor on the ac unit thus causing more load on the engine. I average about 39 to 41 during the summer and when the temp drops I drop to 35 to 37. I use the ac in the summer and drive rather aggressively. I've had my girl 3 plus years with 70K on her and this mpg drop in the winter is a fact of life if you live in a cold climate.