fuel economy

  1. LongTom

    Terrible 5.7L 2500 MPG

    Had an engine code for a P0420. Took out cats and put in anti-fowlers. No engine light so far, but have noticed my fuel economy is absolutely terrible. Was bad before and now seems a little worse. It’s a 2011 Ram 2500 5.7L crew cab longbox 4x4 with 3:73’s and stock tires. I drive it like a...
  2. LongTom

    2011 Ram 2500 5.7L Poor Performance

    Hello everyone, I recently purchased a 2011 Ram 2500 5.7L 4x4 Crewcab Longbox with I believe 3:73's a few weeks ago. Truck has an engine code (P0420) for catalyst efficiency below threshold on bank 1. Truck feels a little underpowered for 390 HP and If i am absaloutley driving like a grandma at...
    • LongTom
    • Thread
    • 2500 2500 5.7 catalytic converters engine codes exhaust fuel economy hemi hemi 5.7 mpg power
    • Replies: 2
    • Forum: Engine & Performance
  3. LongTom

    2011 Ram 2500 5.7L Poor Performance

    Hello everyone, I recently purchased a 2011 Ram 2500 5.7L 4x4 Crewcab Longbox with I believe 3:73's a few weeks ago. Truck has an engine code (P0420) for catalyst efficiency below threshold on bank 1. Truck feels a little underpowered for 390 HP and If i am absaloutley driving like a grandma at...
    • LongTom
    • Thread
    • 2500 2500 5.7 catalytic converters engine codes exhaust fuel economy hemi hemi 5.7 mpg power
    • Replies: 10
    • Forum: Engine & Performance
  4. husseydep

    Fuel efficiency?

    Looking for a little help here... I have 5770 miles on my 2021 Ram 1500 w/ etorque and here suddenly went from 405 miles range (read out) on a full tank of gas to 170 miles range (read out) at 8.4 mpg.... including 33 miles listed until empty on a quarter tank of gas. Like many, I rely on that...
  5. SniperDroid

    One Long Haul...!

    Just got back from my longest haul to date. We took the camper up to Aberdeen, South Dakota for a week. Two days of driving on the way up, and two days driving on the way back. I did some experimenting with the Tow/ Haul feature that just re-enforced my faith in USING IT whenever towing more...
  6. M

    Regen Regen Regen, Excessive Regen. Need help

    I have a 2019 Ram with a 6.7. In January of this year CP4 went out, 1-month at the dealer before they replaced the entire fuel system and put in a cp3. Since this work the truck is performing a regen every 50-100 miles. I can hear the difference in the motor when it regens and the DPF monitor...
    • malonerory
    • Thread
    • 5th gen cp3 swaps dealership dpf delete egr valve fuel economy recalls regen
    • Replies: 18
    • Forum: General Discussions
  7. P

    Towing + MPG (1500 Classic Tradesman 2x4)

    I have a ‘21 1500 Classic Tradesman 2x4. It’s done me great. I’ve had it about 6 months and 17000 miles. I drive a TON, so MPG is very important. (More important than monthly payments to a large extent.) I can get (driving conservatively) 24mpg on the highway w my 1500, but towing takes it down...
  8. Johnny_N_TX

    2002 4.7 with 545RFE and 4.56:1.00 trutrac = AWESOME!!!

    Just wanted to share my experience thus far with owning and upgrading my Ram: I inherited a 2002 Ram from my Dad last year. It came with a 4.7, 45RFE (it was originally a 4 spd) and 3.55:1.00 gear with an open diff. The truck was a real pig. It was slow to get up to 65, got horrible fuel...

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