I stand corrected thank u sir and yeah it is dumb cuz most Americans don't know how to convert to metric.

 

everybody just needs to take like 5 minutes and learn how to read a tire. Metric tire sizing isnt really all that hard.

 

i know how to read it, its just dumb to have a ratio, whats the point? all anyone needs to know anyway is how wide the tire is, how tall it is, and what size wheel it fits.

 

more variety of tire sizes with ratios.

 

they could still measure it in mm though...

 

i have 265/70/16. I have 4.56 because i'm going bigger in the future.

 

are you lifted or have a body lift? how would one of those straight through cats do compared to a piece of pipe?

 

no lift. basically the same thing as a regular cat just a higher flow. think of it this way paper air filter vs a k&n drop in. a little more flow. a piece of pipe increases the flow, i can feel a difference and my gf could smell the truck from following me

 

Since I installed my tuner I get right at 21mpg with 3.73's and 33's. I probably could have gotten a little better but I found myself keeping up with the cars going above 80mph.

 

what was you mpg before the tune?

 

so I looked under my 01 today and I have 4 cats. There are 2 pre cats and then the main one in the rear is a 2 part cat. Dont really want to remove it and the replacement in over 300 bucks, can you clean these things?

 

It was around 17-18mpg. I would always get down to a 1/4 tank one way but this time it was between 1/4 and 1/2 with it more towards the 1/2. I also run ethanol free 93 octane.

 

is that a serious question

 

i think so haha

take a piece of 1inch pipe and hammer it through...all clean!

 

386 Miles
16 Gallons pumped
____________________
24Mpg

its all in how you drive

 

Did you not fill the tank? You can hold more than 16

My absolute best was 23 going to Columbia, MO from Rolla, MO (all highway)

 

well i guess not, I just dont want to drop 300 bucks on it and I dont want it smelling like **** either, guess I will live with it for now

 

i get 15 if im lucky and if i drive any slower i wont be moving, this is with 4.10 and 33s, there is no way i can get that much unless im going down a hill. im hopeing to gain a few back with a tuner, but i just dont see how that guy claims 21mpg with 33s and 3.73s.

 

Wirelessly posted

Pump shut off at 16

 

because the tank was full or because you only paid 16 gallons worth?

 

Wirelessly posted

Reading this thread makes me think something is wrong with my truck. The absolute best I've ever gotten is 16 mpg. Does running different octane gas make that much difference. I usually just run 87.

 

I have a manual and it's reg cab. Also my 33's are 10.50 and not 12.50's. When I got back from my trip it was 20.83mpg.

 

higher than 87 wont change anything. i love that i can squeeze 10mpg more out of this thing absolutely love it.

pump shutting off

 

You can fit more after the pump shuts off. I can get about 17.5 gallons normally if I fill it to the brim.

 

last time i did that i got sprayed. also over filling can cause issues