JMJNet
Recruit
Gear ratio.
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Things that decrease your fuel economy
- Thread starter Rodd
- Start date
HighSierra86
Active Member
between this and the winter blend of fuel.....my mileage sucks during the winter months. You think stock idle robs MPG's??? Try the "high idle mod" for your fuel economy
GM Guy
Manual Trans. 2WD Enthusiast
you all are gonna hate me for this, but auto trannies & 4wd!
4wd, no arguement, but the hotly argued manual/auto arguement is in the hands of the driver. one can get better out of one rather than the other, and vice versa.
4wd, no arguement, but the hotly argued manual/auto arguement is in the hands of the driver. one can get better out of one rather than the other, and vice versa.
Rodd
Recruit
Your right! A tranny not properly maintained can decrease fuel economy as well. I will add that to the list.
North Maine
Merchant Mariner
For "S" trucks a messed up EGR system will eat MPG's like crazy. Extra fuel tanks too... i lost 1.5 MPGs with an 80 gal tank full in the bed.
guybb3
Member
Wrong tires. I used D rated instead of the E rated tires my truck came with and I lost 1.5 mpg immediately.
qwomack
JP5 Junkie
Front end alignment out of spec. will hit your mileage.
Rodd
Recruit
This is for those who have added a manual waste gate controller, e.g. turbo master from heath. Your vacuum pump is still connected but has no use. If it starts to wear out you won't know. My question is will it or can it cause fuel economy to decrease?
Acesneights1
New Member
Don't forgit drivin around with that Moo Cow ya picked up in the bar off the floor last night at 4 am....Nah I never done that...
GM Guy
Manual Trans. 2WD Enthusiast
it was icy out, you needed balast for the studded tires to dig in, it wasn't your fault!
Pillow
Recruit
Aces, ROTFLMAO
Acesneights1
New Member
It's never happended....
dangerousdave
1994 6.5 Suburban
Definetly,
speed, gear ratio, EGR, Vac Pump, stock boost limiter (thank God for TM), Lousy diesel (soy additive and diesel kleen silver jug work best for me)
speed, gear ratio, EGR, Vac Pump, stock boost limiter (thank God for TM), Lousy diesel (soy additive and diesel kleen silver jug work best for me)
Turbine Doc
Just Another Diesel Guy
Any parasitic load is just that parasitic, even if just a minor load, remove it, sell to somebody that needs one for the price of the shorter belt you'll need, it will also be more reliable with no vac pump, since with TM it's acting like and idler now, 1 less thing to mechanically fail on ya.
Matt Bachand
Depends on the 6.5
Defective Thermostats, 180 slightly less mPG than 195's.
On topic, Fan clutch stuck engaged.
On topic, Fan clutch stuck engaged.
Rhinopkc
Bull in a China Shop
Chili Cheeseburgers?
dangerousdave
1994 6.5 Suburban
Ya sure, stopping for food kills the O'l mileage.
Take a cooler full of food on those long drives, and a cup heater for the coffee. A co-driver helps, as long as their lard butt doesn't weigh the rig down too much. Crank up the heat, and you'll just evaporate the pee, and won't have to stop.
Oh yeah, it's what KILLS mileage, not what helps it... Fergit it.
Take a cooler full of food on those long drives, and a cup heater for the coffee. A co-driver helps, as long as their lard butt doesn't weigh the rig down too much. Crank up the heat, and you'll just evaporate the pee, and won't have to stop.
Oh yeah, it's what KILLS mileage, not what helps it... Fergit it.