Mileage and/or Longevity Mods - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 03-06-2008, 03:13 PM Thread Starter Fanatic
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Mileage and/or Longevity Mods


I am new to this and have done some searches to the threads here but not found one for this so far, that is why I started one. I had my Truck now for a little less than 1 year and it is all stock. While I am impressed with all the power you can get out of the trusty 7.3, I want mine to last. It has 190k now and that is not bad, I know. I don't think previous owners did anything to the engine as exhaust and intake are stock and that would probably be the first think you change if you want more power. I will be putting on a 3 inch downpipe to make it breathe a little easier. But my question is:

What Mods are easy and get me better mileage but don't kill engine life? Or what Mod may actually extend my engine life? I mostly drive empty (95%) but occasionally tow my 10000lbs boat. Right now I get about 14 to 15 MPG. My short range tranny and the 410 rear end don't help, at 65 down the highway I run at 2400 RPM.

Or have people with moderate Mods logged another 100000 miles on their PSD without any problem?

Let me know, also for other people trying to decide how heavily to modify their PSD.

1997 F350 Crew Cab Dually 2WD PSD 5 Speed Short Range Manual
3' downpipe, Kitty delete, DIY NAPA Filter Intake, Edge Evo Programer on Lvl 1 for MPG
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post #2 of 3 Old 03-06-2008, 03:28 PM
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can't go wrong with and intake and a full exhaust that will help and not hurt the life of a motor

1995 Ford F250 4X4 Sup cap Long bed off white
7.3L Powerstroke, 5 speed manual

Mods Stancor GPR, Diamond eye 3" DP, Diamond Eye 4" Exhaust, AFE Stage II Intake,3" plenum setup,Swamps IDM,Eletric Fuel System,Adrenaline HPOP,stage I sticks, ts 6 pos,
Banks 5" Tips, Leveling Kit,Dana 60 Swap, AutoMeter Boost, Pyro, Fuel Pressure
30% Windows,
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post #3 of 3 Old 03-06-2008, 04:01 PM
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An intercooler is good to extend the engine's lifespan, especially if you tow.


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'97 F-350 "FORDOR" 4X4 (Dually Conversion, Shackle Reversal, Technicooler , Auto Meter Gauges, 4" DIY Dual Exhaust w/ '08 tips, 4" DIY intake w/ AEM filter, Wicked Wheel 2, 360 thrust bearing, Homemade E-fuel conversion, Wildman Chip, 160cc DIY injectors , DIY IDM mod) 230K and counting...
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