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mileage - 2/19/2006 3:14:13 PM

jennikz

Posts: 41
Joined: 2/6/2006
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Just wondering what kind of mileage everyone is getting with their blazer? I'm trying to figure out if mine is average or not. I'm getting about 15 around town. I haven't really taken any trips yet that would let me figure out the highway miles. Is 15 about average?

Post #: 1

RE: mileage - 2/19/2006 3:19:05 PM

swartlkk

Posts: 15304
Joined: 5/1/2005
From: Waterloo, NY
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I'm getting 15.5-16mpg depending on the weather with my 12 mile (one-way) commute that is about 80% 55mph and includes 1 stop sign and 5 stop lights. My personal best was after my tune up with O2 sensors starting to get lazy and that was 18mpg. I hope to see atleast 18mpg this summer if/when I drive it.

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Post #: 2

RE: mileage - 2/19/2006 3:51:39 PM

4lowlife

Posts: 1562
Joined: 12/29/2005
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Mine avererages 18.1 mpg. I haven't reset the overhead console for at least 3 months now.

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Post #: 3

RE: mileage - 2/19/2006 8:22:17 PM

blazin97

Posts: 1675
Joined: 11/16/2004
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15 with a bad O2 sencer and a big hole in the exhaust.

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97 Blazer 2DR/2WD-down for some upgrades
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Post #: 4

RE: mileage - 2/20/2006 1:23:41 AM

dropd4door

Posts: 23
Joined: 1/26/2006
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was getting 15mph on regular, now im using super im getting 17.5 - 18

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Post #: 5

RE: mileage - 2/20/2006 6:28:35 AM

swartlkk

Posts: 15304
Joined: 5/1/2005
From: Waterloo, NY
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quote:

ORIGINAL: dropd4door

was getting 15mph on regular, now im using super im getting 17.5 - 18

Unless you have tuning to take advantage of the higher octane, high octane will do nothing. You are most likely seeing an increase because with regular, you were having detonation causing the pcm to retard the timing. The higher octane will fight detonation. I bet if you were to give your engine a good seafoam treatment that you would get the same mileage with regular. Most detonation is caused by carbon buildup in the combustion chamber.

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Post #: 6

RE: mileage - 2/20/2006 7:13:51 AM

tomsblazer

Posts: 78
Joined: 12/2/2005
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I get 16.5 to 17 when driving like a grandmother.

130000 miles and no mods.

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Post #: 7

RE: mileage - 2/20/2006 9:23:40 AM

lovetheblazer

Posts: 91
Joined: 11/11/2005
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I am getting 12mpg since about 2 months ago but I need to change an 02 sensor and the fpr AND I have a heavy foot...15mpg is not THAT bad...our trucks are gas hogs!

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Post #: 8

RE: mileage - 2/20/2006 9:28:23 AM

Bocomo

Posts: 175
Joined: 11/26/2005
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I'm getting 16.5 and my driving is mainly around town. Some pretty good stretches of 45 to 50 MPH driving, but more than my fair share of stoplights.

Today I get to go 30 miles of highway driving, hoping to pretty good on mileage.

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Post #: 9

RE: mileage - 2/20/2006 5:50:18 PM

4lowlife

Posts: 1562
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Wow, I'm getting like 1000 mpg! (haven't gone anywhere in a few days.)

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Post #: 10

RE: mileage - 2/20/2006 7:12:15 PM

strongboy2005

Posts: 170
Joined: 1/28/2006
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I'm only getting ~12 MPG... vague question but... why am I getting such bad gas mileage?

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Post #: 11

RE: mileage - 2/20/2006 7:17:04 PM

swartlkk

Posts: 15304
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From: Waterloo, NY
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Could have something to do with all of these 1/4 mile tests you are doing? Just a guess though...

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Post #: 12

RE: mileage - 2/20/2006 7:21:08 PM

4lowlife

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quote:

I'm only getting ~12 MPG... vague question but... why am I getting such bad gas mileage?

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Flooring it every couple days might be a contributor like Kyle said.

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Post #: 13

RE: mileage - 2/21/2006 6:45:33 AM

lovetheblazer

Posts: 91
Joined: 11/11/2005
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quote:

ORIGINAL: swartlkk

Could have something to do with all of these 1/4 mile tests you are doing? Just a guess though...

You read my mind swartlkk...this definitely has to do with all those 1/4mi test runs...no way you'll get better mpg!
If I drive like a granny in a complete tank I can get 17-18mpg...but since my foot is heavy, I never get more than 14mpg...

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Post #: 14

RE: mileage - 2/21/2006 11:28:01 AM

strongboy2005

Posts: 170
Joined: 1/28/2006
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quote:

ORIGINAL: swartlkk

Could have something to do with all of these 1/4 mile tests you are doing? Just a guess though...

True... Oh well! lol

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Post #: 15

RE: mileage - 2/21/2006 7:59:19 PM

2001blazer

Posts: 366
Joined: 9/8/2005
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i got 12.5 on my last tank i usually see about 12-14 city driving but i have an extremely heavy foot and have seen 19 on a road trip doing a mix of 60-80mph so i bet i could get 20 if i wanted to on highwa driving as for my city driving well im not about to change my heavy foot habit until i need to i guess hahaha

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Post #: 16

RE: mileage - 2/22/2006 10:37:02 PM

93LT

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quote:

ORIGINAL: swartlkk

quote:

ORIGINAL: dropd4door

was getting 15mph on regular, now im using super im getting 17.5 - 18

Unless you have tuning to take advantage of the higher octane, high octane will do nothing. You are most likely seeing an increase because with regular, you were having detonation causing the pcm to retard the timing. The higher octane will fight detonation. I bet if you were to give your engine a good seafoam treatment that you would get the same mileage with regular. Most detonation is caused by carbon buildup in the combustion chamber.

Good explaination. My 1993 blazer is more efficient and more economical to drive while filling up with 91 octane (highest we have here) as opposed to 87 octane. My cost per mile both in town and out of town is lower with higher octane.

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1978 GMC Sierra Heavy Half
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1997 Olds Bravada AWD
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2001 Yukon SLT 4WD

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Post #: 17

RE: mileage - 2/22/2006 10:39:27 PM

93LT

Posts: 111
Joined: 10/19/2005
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I'll add that in this cold weather we are having, my last tank of 87 octane produced 12.5 MPG in the 1993. Previously with higher octane (probably 89) I was around 14.5-15, with fewer and shorter cold morning warm up times.

My wife is in charge of the 1995 and seldom checks it, and usually resets the trip prior to me asking her to check it:)

The Bravada is still awaiting the engine transplant, which is waiting on some warmer weather.

< Message edited by 93LT -- 2/22/2006 10:40:53 PM >

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Rod

1978 GMC Sierra Heavy Half
1993 Blazer LT 4Dr 4WD Vortec
1997 Olds Bravada AWD
2001 Silverado LT 2500HD CC 4WD
2001 Yukon SLT 4WD

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Post #: 18

RE: mileage - 2/25/2006 9:19:51 PM

blazin97

Posts: 1675
Joined: 11/16/2004
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I have a very heavy foot, bad )2 Sencer and a big hole in my Y pipe and I got 15.5 mpg when I filled up today.

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97 Blazer 2DR/2WD-down for some upgrades
97 Blazer 2DR/4WD/4.3/5Spd/31s/rusted

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Post #: 19

RE: mileage - 2/26/2006 4:34:13 PM

jackfrond

Posts: 16
Joined: 2/24/2006
Status: offline

yeah a hevy foot will kill the gas milage, i do it all the time and get 11-12 mpg...fun as all get out. your transmission will also affect the gas milage you get. a manual will increase the mpg by 2 or 3 miles...i have the auto, so that explains my problems...

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Post #: 20