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Terrible Gas Mileage on Brand New 4-cylinder Automatic

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Old 07-05-2013, 08:14 AM   #41
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Quote:
Originally Posted by worthywads View Post
Apparently any time in any thread it can devolve into 2wd vs 4wd.

Somehow we had 2wd trucks for decades before 4x4 became popular with people that use trucks for something totally different.
Absolutely correct. Each truck (2wd or 4wd) has its applications. It just depends upon what reasons a person needs a truck.

Excuse my ignorance but one thing I've never really understood though is why 2wd gets, or should get, better mpg than a 4wd. I mean when the 4wd is not engaged why shouldn't it get the same mpg as a 2wd? Help me out brothers....
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Old 07-05-2013, 08:52 AM   #42
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Quote:
Originally Posted by Mike B. View Post
Absolutely correct. Each truck (2wd or 4wd) has its applications. It just depends upon what reasons a person needs a truck.
That's right. My 2x4 never goes off road because it's used as a daily work utility vehicle and not for recreational dirt riding. So it would be silly for me to own a 4x4.



Quote:
Excuse my ignorance but one thing I've never really understood though is why 2wd gets, or should get, better mpg than a 4wd. I mean when the 4wd is not engaged why shouldn't it get the same mpg as a 2wd? Help me out brothers....
Could be because the 4x4's are carrying a lot more driveshaft/transfer case/hub driveline weight and are turning way larger heavier high rolling resistance wheels.

I experienced a 4 mpg increase in my gas mileage average going from heavy large diameter dirt tires to stock diameter low rolling resistance passenger car street tires. (results included using a 13% diameter correction factor)
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Old 07-05-2013, 11:13 AM   #43
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Yep, multiple factor.

Tires are a big one, rolling resistance and weight. Even 2 different passenger tires can mean 1-2 mpg difference, I've seen that for myself.

Gearing is usually different, higher rpm at equal speed.

Extra weight.

Extra height increases wind resistance.

Dodge City KS, ouch!, I lived in Garden City for 3 years, don't ever want to go back.
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Old 07-06-2013, 06:01 AM   #44
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Quote:
Originally Posted by rgardine2000 View Post
Tires are P265/65R17.

There is your problem.. Tires and most likely weigh much more than stock. What type of tires are they? Do you still have your stock tires?
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Old 07-07-2013, 05:10 PM   #45
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Quote:
Originally Posted by Fast1 View Post
There is your problem.. Tires and most likely weigh much more than stock. What type of tires are they? Do you still have your stock tires?
+1, Increasing unsprung weight is a bad idea if your looking for gas mileage. Also larger tires change your stock gearing ratio also reducing gas mileage.
Bigger tires are the curse that keeps on taking. Costs more to buy them and it takes more gas to turn them.
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Old 07-12-2013, 11:56 AM   #46
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That's all I need is a reason to get a bed cover, lol...
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Old 07-13-2013, 02:44 PM   #47
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When I got my 2011 Tacoma regular cab 2.7 automatic I calculated 15 mpg for the first few tanks but I eventually started averaging in the low 20's, now with 13,000 miles and commuting 120 miles 3 days a week I can average 25-26 mpg.
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Old 07-18-2013, 12:22 PM   #48
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Quote:
Originally Posted by Fordless View Post
+1, Increasing unsprung weight is a bad idea if your looking for gas mileage. Also larger tires change your stock gearing ratio also reducing gas mileage.
Bigger tires are the curse that keeps on taking. Costs more to buy them and it takes more gas to turn them.
I noticed a drop in MPG going to 265/70/17s, but I did it only to correct my high-reading speedometer. It may also have something to do with my commute going from 45 miles highway to 8 miles city. Having an off speedo was like having an itch you just can't stratch... for 6 years...

Is it worth it to look into changing up my gearing? I probably should just save the $$$ and put it towards gas...
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Old 07-23-2013, 12:19 PM   #49
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Quote:
Originally Posted by 127.0.0.1 View Post
horrible gas mileage stories are 'just noise' unless you
post driving conditions, speed, hills, tires installed...all the details

if you have

stock tires at stock pressures
and go 55 mph and
are not heavy on the gas
and not loaded with cargo
and using 87 octane with 15 percent or less ethanol
and not cliimbing hills all day long

you will easily beat 22mpg


better yet get a scangauge and watch how your driving habits and right foot affect mileage

I can get 24mpg from my 6cyl Tacoma all day long, or I can get 14mpg...it all
depends on where I drive and how I command the inputs. I average 17 around town
and 20.8 on highway


I could not agree more. I have a 2011 2.7 PreRunner with an auto and a mid-high cap on it. I am averaging about 23-24mpg right now, but I drive it gently with the goal of getting decent mileage. If I drive it more aggressively, the mileage drops into the low 20's.
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Old 08-01-2013, 11:35 AM   #50
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I get 20-22 mpg no matter how I drive it or where. 2.7L auto. 14mpg is indicates a serious problem unless you spend a lot of time idling in traffic. I also use 90 octane gas and that probably helps a little on mileage.
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Old 08-02-2013, 03:04 PM   #51
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Just take it easy on startups and don't race to the red light...
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Old 08-14-2013, 10:17 PM   #52
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Unhappy 2012 Tacoma

Quote:
Originally Posted by rgardine2000 View Post
I bought a new 2013 Tacoma 2.7L PreRunner, 4-door, automatic, because my research indicated these trucks averaged about 22mpg in the real world. I have about 3000 miles on it now and it averages about 17mpg, and has never gone over 17.8, even on the highway. The dealer is telling me it needs to have a relatively long break-in period (at least 15k miles) before I will see the real gas mileage improve. He said they will do a consumption test on it when I bring it in for the 5k mile checkup.

If what the dealer said is true then great, but I'm afraid I may have a lemon here and I need some ammunition. Could you guys give me some feedback on what your newer model 4-cylinder Tacomas are getting on gas mileage, particularly when they were new?
I have a 2012 Tacoma 4 cyl... Gas mileage was 17 mpg at first .. After 6000 miles I get almost 19.... Top speed is 80.. Very disappointed.... No power... Afraid to drive it on 2 lane roads... Will never buy another.. Piece of junk...!
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Old 08-14-2013, 11:32 PM   #53
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Different cab configurations, hills, weight and driving habits all contribute. I got 18 average with my 4x4 up north going up and down hills with gear doing 70. I got 23 on a recent trip to PA doing the same. Everyone will get between 17 and 25 depending on those criteria. People with lower figures probably either accelerate harder then others and or live in an area with more hills if their truck checks out OK.
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Old 08-15-2013, 01:00 AM   #54
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Quote:
Originally Posted by Klausgross View Post
I have a 2012 Tacoma 4 cyl... Gas mileage was 17 mpg at first .. After 6000 miles I get almost 19.... Top speed is 80.. Very disappointed.... No power... Afraid to drive it on 2 lane roads... Will never buy another.. Piece of junk...!
If your top speed is 80, then there's something wrong.
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Old 08-15-2013, 05:20 PM   #55
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Thumbs down

I have a 4cyl Tacoma .. 2012 with around 6000 miles... I was getting 17 mpg but the last few fill ups I have been getting 18 mpg.. Top speed is 80 mph... Got no power at all 0 to 60 in 25 seconds.. Forget driving on a 2 lane road.. No passing power ...
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Old 08-15-2013, 05:26 PM   #56
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Quote:
Originally Posted by Klausgross View Post
I have a 4cyl Tacoma .. 2012 with around 6000 miles... I was getting 17 mpg but the last few fill ups I have been getting 18 mpg.. Top speed is 80 mph... Got no power at all 0 to 60 in 25 seconds.. Forget driving on a 2 lane road.. No passing power ...
One simple question, have you taken it to the dealer? There is obviously a serious problem.
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Old 08-15-2013, 05:50 PM   #57
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Quote:
Originally Posted by 91r100gs View Post
One simple question, have you taken it to the dealer? There is obviously a serious problem.
Joined this month. Has 4 posts in 4 different threads. All of them say the exact same thing. Nothing posted except he gets crappy mileage, and no replies from him to people who are asking questions and/or trying to help him.

Troll? Real dude? Dunno. But that's just the facts, ma'am.
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Old 08-15-2013, 06:17 PM   #58
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I was thinking Troll
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Old 08-15-2013, 07:11 PM   #59
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Originally Posted by 91r100gs View Post
I was thinking Troll
Yes. I was thinking that too.

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Old 08-15-2013, 07:13 PM   #60
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Agreed then!

He says he has an AC. Having driven a 2.7 AC PreRunner I know it isn't as slow as he thinks.

So eff him in his A.
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