Winter Gas Causing Drop in MPG? - Page 3 - Toyota Yaris Forums

devinlamothe · 01-07-2010, 01:00 PM

Quote:

Originally Posted by YotaYaris

I filled up this morning at one of my normal spots and what did I see on the pump.....
10% ethanol
That must be why I am down to 39MPG on average. That and more city driving has made me lose about 3-5MPG.

At least you don't have 15% everywhere ... it really eats your mileage.

MadMax · 01-07-2010, 06:13 PM

Yeah, I am also in San Antonio and I can't find gas without ethanol anywhere...

Cheers! M2

Yaris Hilton · 01-08-2010, 07:04 AM

Quote:

Originally Posted by devinlamothe

At least you don't have 15% everywhere ... it really eats your mileage.

Do you have E15 in Canada?

devinlamothe · 01-08-2010, 07:45 AM

Quote:

Originally Posted by Yaris Hilton

Do you have E15 in Canada?

Yes, at most of the stations where I live it's all E15. There are some with just E10 but not many.

captainm27 · 01-10-2010, 06:49 AM

I know every car suffers MPG drops in the winter. But why is that? Is it because of the winter blend type of fuel being used? Or does an engine use more gas to stay warmer during the coler months? I drive my Yaris the same gentle way I do in the winter as I do during the warm spring days (with the exception of snow storms, etc.) I never see my RPM's going so much higher to suggest using more fuel. Does the engine use more fuel, even though it is keeping the RPM's at the same levels? Or is RPM just not a good indicator of how much gas is being used?

Bob_VT · 01-10-2010, 06:55 AM

Winter blend fuel, you use the heater (electric more), and in my case I have 4 snows mounted........ not too mention there is more resistance on the roads with slush and snow...... longer warm-ups.....

I usually average 36-38 in the winter and during real bad weather as low as 32

captainm27 · 01-10-2010, 07:00 AM

I can see the winter blend fuel, that's what I think is affecting the most. I didn't know the heater requires that much more energy. During the spring and summer, I have my fans / AC blowing all the time. I usually don't warm up the car. Just turn on, shift to drive, and go. I can understand the slush and snow, but for the most part, here in NJ, when it snows, by the next day most roads are cleared. Hmm......

Bob_VT · 01-10-2010, 07:09 AM

Well, my "cool" light takes longer to turn off in the winter so the engine is not up to temperature as fast. The tires do not expand and heat up in the winter either.

b_hickman11 · 01-10-2010, 11:23 AM

Your engine likes warm and hot air to be brought into it from the intake. The hotter it is outside, the better mpg's you will get. I recorded my best mpg on a day it was 105+ degrees outside.

Hershey · 01-10-2010, 11:38 AM

winter is good for nothing

.

Hard_Yaris · 01-30-2010, 12:11 PM

Here in Edmonton We get good week long cold snaps of -20C.

I never let my car Idle long, and have never had to plug it in even at -35C... It started with a few more turnovers.

My question would be: Would it help with millage to have a warmer engine bay with temperatures of -20 and lower?
I find my water Temp to be around 85C when its that cold.

MadMax · 01-30-2010, 01:24 PM

Quote:

Originally Posted by b_hickman11

Your engine likes warm and hot air to be brought into it from the intake. The hotter it is outside, the better mpg's you will get. I recorded my best mpg on a day it was 105+ degrees outside.

Maybe that explains the good mileage I got this past summer, when we had all those 100+ degree days...

I can't wait for those days to return!

Hard_Yaris · 01-30-2010, 06:06 PM

So in this case Hot Air is Good!

BailOut · 01-30-2010, 06:34 PM

Quote:

Originally Posted by b_hickman11

Your engine likes warm and hot air to be brought into it from the intake. The hotter it is outside, the better mpg's you will get. I recorded my best mpg on a day it was 105+ degrees outside.

Precisely. This is why many of us hypermilers block our grilles in the cold months, and why some also set up DIY warm air intakes.

SQUARE HEAD · 02-26-2010, 03:39 PM

Quote:

Originally Posted by schleppy

My MPG almost always drops in winter. So far I'm seeing 2mpg less than summer.

MY LITTLE MULE USED TO GET AT LEAST 40MPG BUT SINCE THE COLD WEATHER MY MPG IS NOW DOWN TO 34--35MPG...SAME DRIVING HABITS ANY SUGGESTIONS??

127.0.0.1 · 02-26-2010, 04:23 PM

Quote:

Originally Posted by SQUARE HEAD

MY LITTLE MULE USED TO GET AT LEAST 40MPG BUT SINCE THE COLD WEATHER MY MPG IS NOW DOWN TO 34--35MPG...SAME DRIVING HABITS ANY SUGGESTIONS??

wait for summer

or throw a blankie in front of the radiator

Twistoffate0817 · 03-17-2010, 06:22 PM

When does the Northeast switch over to summer gas?

Hershey · 03-17-2010, 10:50 PM

usually in APRIL . Flowers bloom as do gas prices .

01-10-2010, 06:49 AM	#41
captainm27 Drives: 2008 Sedan A/T Silver Join Date: Nov 2008 Location: New Jersey Posts: 202	Why do I get terrible gas mileage in the winter? I know every car suffers MPG drops in the winter. But why is that? Is it because of the winter blend type of fuel being used? Or does an engine use more gas to stay warmer during the coler months? I drive my Yaris the same gentle way I do in the winter as I do during the warm spring days (with the exception of snow storms, etc.) I never see my RPM's going so much higher to suggest using more fuel. Does the engine use more fuel, even though it is keeping the RPM's at the same levels? Or is RPM just not a good indicator of how much gas is being used?

01-10-2010, 06:55 AM	#42
Bob_VT View User's Garage Drives: 08 Yaris LB Join Date: Oct 2008 Location: Vermont Posts: 1,704	Winter blend fuel, you use the heater (electric more), and in my case I have 4 snows mounted........ not too mention there is more resistance on the roads with slush and snow...... longer warm-ups..... I usually average 36-38 in the winter and during real bad weather as low as 32 __________________ some people are little slinkies. . . . .they are really good for nothing. . . .but they still bring a smile to your face when you push them down a flight of stairs. Come to the DARKSIDE..... We have candy

01-10-2010, 07:09 AM	#44
Bob_VT View User's Garage Drives: 08 Yaris LB Join Date: Oct 2008 Location: Vermont Posts: 1,704	Well, my "cool" light takes longer to turn off in the winter so the engine is not up to temperature as fast. The tires do not expand and heat up in the winter either. __________________ some people are little slinkies. . . . .they are really good for nothing. . . .but they still bring a smile to your face when you push them down a flight of stairs. Come to the DARKSIDE..... We have candy

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01-07-2010, 06:13 PM	#38
MadMax Drives: 2008 Yaris Liftback (Sprocket) Join Date: Oct 2008 Location: San Antonio, Texas! Posts: 2,799	Yeah, I am also in San Antonio and I can't find gas without ethanol anywhere... Cheers! M2

01-10-2010, 07:00 AM	#43
captainm27 Drives: 2008 Sedan A/T Silver Join Date: Nov 2008 Location: New Jersey Posts: 202	I can see the winter blend fuel, that's what I think is affecting the most. I didn't know the heater requires that much more energy. During the spring and summer, I have my fans / AC blowing all the time. I usually don't warm up the car. Just turn on, shift to drive, and go. I can understand the slush and snow, but for the most part, here in NJ, when it snows, by the next day most roads are cleared. Hmm......

01-10-2010, 11:23 AM	#45
b_hickman11 Drives: 08 Sedan Join Date: Oct 2008 Location: Tyler, TX Posts: 899	Your engine likes warm and hot air to be brought into it from the intake. The hotter it is outside, the better mpg's you will get. I recorded my best mpg on a day it was 105+ degrees outside.

01-10-2010, 11:38 AM	#46
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,897	winter is good for nothing .

01-30-2010, 12:11 PM	#47
Hard_Yaris Drives: 07 Yaris Join Date: Dec 2009 Location: Edmonton Alberta Posts: 109	Here in Edmonton We get good week long cold snaps of -20C. I never let my car Idle long, and have never had to plug it in even at -35C... It started with a few more turnovers. My question would be: Would it help with millage to have a warmer engine bay with temperatures of -20 and lower? I find my water Temp to be around 85C when its that cold.

01-30-2010, 06:06 PM	#49
Hard_Yaris Drives: 07 Yaris Join Date: Dec 2009 Location: Edmonton Alberta Posts: 109	So in this case Hot Air is Good!

03-17-2010, 06:22 PM	#53
Twistoffate0817 My Little Blue Egg :) Drives: '09 3 door Yaris Join Date: Dec 2008 Location: Voorhees, NJ Posts: 185	When does the Northeast switch over to summer gas?

03-17-2010, 10:50 PM	#54
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,897	usually in APRIL . Flowers bloom as do gas prices .