ridiculously horrible gas mileage

This gives me hope. You have DC, I have AC. You run 33s n bigger lift than me while Im only going up to 265/75-16. PLEASE be done "breaking in" soon!

How crappy and for how long?

 

Dude, I was so close to getting a Tundra and said "nah gas is crazy" i was going to get a 0% interest rate too.

 

Getting a Turbo diesel!! Except not really though

 

Which octane level are you using?

 

OP I have a V6 6spd manual. I have quite a few mods and Im getting 16 no matter how I drive, highway or city. When I was stock I was getting 19/20 on average. I would raise a flag thats not right at all. The nice thing about our trucks is no matter how you drive you will get pretty close to the same economy. 11MPG is retarded I would take it back and have it looked at to be honest it being so new. if you were getting 16 i would say its normal. 11 is laughable.

 

If you are running 87 octane, try switching to 89 minimum. It should help.

 

My 4 cylinder gets the same as a v6 I am an averaging around 17 right now my v8 4runner averaged 20 its really makes no sense.

 

I have experienced both automatic and 6-speed, and the 6-speed is far worse in terms of mileage, but you also have to remember that the automatic free wheels when throttle is not engaged, and also it is a TRUCK..... You shouldn't expect anything good in terms of fuel mileage when driving a truck. I'm not trying to be a jerk, just simply stating the facts!

 

I'm calling the dealer today since I'm going back there anyways. Make them figure everything out. Thanks man, trust me I know ha when 11 came up on my calculation I was in shock. . .

 

Appreciate the input man but I already do. I'm definitely goona get her looked at

 

You can quite literally expect to get around the same average mpg as people with the exact same truck instead of 5mpg less though, also somewhat of a fact.

 

My '09 SR5 TRD Sport is chugging 10.3 mpg, it's an automatic and that's all highway driving. I got 217 miles off of 21 gallons from my last fill...

 

dude, please tell me your running monster truck tires and thousands of pounds in armor, wow

 

I've 265/70R17's. So they're not huge, but they're bigger than stock. And weight-wise I'm not hauling anything extra. This mileage is killing me though.

 

You put in 21 gallons? Was the tank sucking itself in when you filled up?

OP- how are you calculating your mileage in case i missed it. Youre doing miles driven divided by gallons pumped correct? Ive got three inch lift 255/80/17 km2s and my mileage is around 15-16 mpgs with city/hwy.

 

yup, miles over gallons. i keep a notepad in every vehicle i have and document every mile/gallon, etc.

I'm praying my truck has a retarded break in/winter mix sucks and in a while ill be back up to 18mpg

 

So not right. Your tires are barely over stock (if that). What is it with these trucks and super bad mileage sometimes? No one ever seems to have a definitive fix. You would think with such bad mileage, you'd be throwing check engine lights left and right as something is clearly off.

 

I'd definitely take it back to the dealer if you just got it. Unless you're hammering it all the time, or driving in serious offroad conditions all day long, under 11 mpg is totally unacceptable in a truck that's essentially stock.

 

Wow, that's even lower than mine ^

You definitely gotta get that looked at man