15MPG!

I just purchased a 2009 SR5 V6 auto crew cab 4x4 with 67K. I have had it for 7 days and 99% of my driving has been interstate (cruisecontrol on 75mph). I am only getting 15 MPG and i cant figure out why. The truck's prior service records are squared away as everything has been done on schedule. I have read posts on the AFE filters and will try one out, but 15MPG??? I am thinking something else could be going on? I appreciate any advice/suggestions I can get.

 

Check air filter and tire pressures. These trucks don't get GREAT gas mileage, but 15 seems low unless you take off like John Force.

 

That's what I get in my DCLB v6, but I like to braaaap. I can get more on the highway though. 22.5 is the record high going 65, so you should probably be getting more than that.

 

Filters and tire pressure are tip top. This is my first ever automatic tacoma so maybe I am hard charging on the take off, all thought I don't feel like it. Worth a shot though, thanks

 

Might be worth finding out from the previous owner (if possible) if they changed the gear ratio or anything. 15 sounds low, especially on the highway.

 

15 does sound low... I bought 2007 used (70000 miles) and have gotten around 20 MPG with probably a 50/50 split of hwy/city since. I now have 100000 miles.

 

For doing 75 mph with that engine, that doesn't sound too far off. My '99 averaged 14-16 mpgs with a mix of highway and local roads.

 

I don't necessarily agree with this. Reason being, I had a 2005 Titan and a 2007 Escalade for about 2.5 years and averaged 16-17mpg in each going 75 from Houston to New Orleans several times. Those had 5.6 and 6.2 litre engines. I think he should be getting at least 19-20 on the highway.

 

15 mpg.. Pretty good.

 

I have 2012 DCLB with 6500 miles....just filled up 17.3 mpg back and forth to work with several stop lights and ran the air all week. Try keeping the rpms under 2000. It helped me alot ....67mph =2000 rpm on highway on my 2012 trd sport

 

Sounds like it could be normal, but my only comparison is my MDX.

55 mph - 24 mpg highway
60 mph - 21/22 mpg highway
65 mph - 19/20 mpg highway

Speeds above that though, I suspect it falls near where you are at. Speed kills MPGs. Try slowing it down by planning an extra 15 minutes to get to your next destination. You might be surprised at the MPGs you could realize.

 

I get 15 in my truck... at 75

 

Original tire size? Putting on bigger tires wth more agressive tread cuts MPGs.

 

x2

With 245 tires I get anywhere from 20-22 mpg @ 70mph and that's spinning almost 2600 rpm on my six speed. An auto with 265s should be in that same ballpark, provided it has been maintained with fluid changes and such.

 

09 V6 auto SR5 A/C 4X4 Hankooks 265/70/16 filled up yesterday and 21.42 mpg. That is my average, 35500 miles on it have owned since it had 15 miles on it.I feel that your speed is the key factor in this.

 

i had 3 1st gens and they all got 21 (auto, 5 spd and i4)
my wifes 4runner is reading 21.6
and my 2nd gen has never gotten below 20 (usually 360 miles before light turns on)

I use reg 87oct from shell

 

I got 19-20 in my 05 DCLB with 265/75/16s, 15-16 in my 07 DCSB 4x4 running 33 12.50 tires, and My 2012 DCSB with 265/70/16s has averaged 19 since I got it. I drive around the same speed that you posted and probably 60/40 Highway miles. I just make sure I accelerate slowly. If you aren't taking off too fast and don't live in a hilly environment then your numbers are pretty low.

 

i just got 13.5 on a tank thats the best ive seen in a real long time

 

How many times have you fueled-up? How are you calculating your milage?
I get 15 towing this 14' popup at 70mph.

 

try slowing down a bit and see what happens to your mileage, also is the truck completely stock?