2015 double cab long bed 4x4 gas mileage

See the rust at the base of the porcelain? Change the plugs

 

Yeah I read the mixed reviews also so I’m switching it back. The cleaning process was kinda annoying having to wait for it to dry. Will def look into cleaning the MAF sensors and go from there.

 

can you give me information on this? Thanks.

 

I think it means they’re rotting from the inside out

 

Same truck and i have never got over 200 miles on a tank.

 

Any mods?

 

That's normal. All plugs will have brown around the porcelain it's from the arc and burn in the cylinder.
Here's a chart. Now this one is missing a few and if that browning on the porcelain is a lot its from hard accel and high burn temps from a leaner mixture. But his seem pretty normal.

 

I mean here

 

I seem to get same mileage as everyone else. 16 on the highway at 70mph; will get over 17 when I drive into Mexico where most mph limits are 60mph. Truck has 265/70-17 E load rated tires with 3-inch lift and tool box with 10 gal of fuel and tools. I also used a GPS to figure out my formula for adjusting miles actually driven. The oversize tires will affect the trip meter in that I drive more miles than it actually indicates. I multiply 1.05 to the reading to get the actual miles I drove.

 

Oh that's just staining nothing to worry with again typical. As long as you don't see any lightning bolts so to speak going on around there or along that part of the porcelain you're good.

 

What no one here has said is driving conditions aka hills, flat, mountains etc.

What kind of driving are you doing OP?? City, with some hills? Flat? Highway, some highway but with hills?

This plays a huge roll in MPG, as we all know. I drive from south puget sound into Seattle everyday, (30mi one way) and I take back roads, lots of lights and up/down etc. and I average 15.5-16 w 265/75 ko2s. Dclb sport w canopy.

 

I get 14-15 city with my stock dclb. Hasn't changed since I bought my truck in 2013.

 

I live in flat florida. Haha, the tank that I calculated was highway until the tank reached half then the rest was city.

 

I've been checking my mileage with a new commute, 75-80 MPH on freeway, or total stop and go, '06 AC auto 4.0 getting right on 16 MPG. Camper shell and 200# of tools riding on Wrangler 265/70.

EDIT: Running with a K&N air filter too!!

 

My biggest problem is i NEVER drive on the highway and my commute is only 2 miles and it takes 20+ mins.

 

Weight of the tires has nothing to do with it. My E rated tires are 15 lbs each heavier than stock. Fuel mileage is exactly the same as always. Tread design, tire width, tire height, and air pressure will affect your MPG's.

The Duratracs are wider, taller, and have a more aggressive tread than factory which increases rolling resistance. If you're running them a little low on air to get a better ride that plays a factor too.

With all that considered, and depending on where you drive 14.9 isn't too far from what I'd expect. Even though my tires are 15 lbs heavier I stayed with a fairly mild all terrain tire and keep the air pressure on the high side to limit rolling resistance. On the hwy I'll get 19-20 mpg. For normal everyday driving 16-17 mpg is normal. You're only 1 mpg off what I'm getting now and what I got 12 years ago.

 

The duratracs are definitely aggressive,
If I could go back I would go a little less aggressive. They are much louder than the toyo open country at II that I had. Those tires were awesome.

 

Weight of the tires plays a huge factor on mpg.