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MPG improvment

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Old Apr 14, 2006 | 09:54 AM
  #1  
DISLFVR's Avatar
DISLFVR
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Locomotive breath
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From: Mid Oh. Ponderosa
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Smile MPG improvment

Just filled up today and what a surprise after the mods I have done, my average went up to 18.2 mpg instead of 15-16 . This is with very little hwy driving and without a muffler. Can't wait to see what it gets on the road.
 
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Old Apr 14, 2006 | 10:02 AM
  #2  
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Man, that'll make your day!
 
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Old Apr 14, 2006 | 10:15 AM
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dunbar15
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From: NH
not saying its not your mods but I notice a big improvement on my 00 when the weathers warms up as it has in the last week. I go from 16 to as high as 19MPG's.. In new england the weather has made a drastic change over the last week, from cold to warm, did you have the truck last spring / summer and compute your mileage before your mods in warm weather ??
 
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Old Apr 14, 2006 | 01:00 PM
  #4  
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DISLFVR
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From: Mid Oh. Ponderosa
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Originally Posted by dunbar15
not saying its not your mods but I notice a big improvement on my 00 when the weathers warms up as it has in the last week. I go from 16 to as high as 19MPG's.. In new england the weather has made a drastic change over the last week, from cold to warm, did you have the truck last spring / summer and compute your mileage before your mods in warm weather ??
Nope, only had it since Jan. 06 The best the previous owner got was 19 hwy mpg
 
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Old Apr 14, 2006 | 03:41 PM
  #5  
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well I guess youll find out next dec-jan, hope your high fuel mileage stays were it is for ya..
 
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Old Apr 14, 2006 | 04:57 PM
  #6  
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72Lester
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From: NW Wyoming
Originally Posted by DISLFVR
Just filled up today and what a surprise after the mods I have done, my average went up to 18.2 mpg instead of 15-16 . This is with very little hwy driving and without a muffler. Can't wait to see what it gets on the road.
I'm with 'ya DISLFVR. Just did all of my mods a few weeks back and drove it on the first roadtrip from home in SoDak down to Alabama last weekend (1550 miles). I've never got better than 16mpg at 70+MPH but I ran 70-75+all the way down here and got average 19 with 3 tanks of fuel. Would've probably got better but I seemed to hit rush hour in Omaha, Kansas City, St Louis, Nasville and Birmingham so naturally a bit of road rage (and associated black smoke) kicked in to get thru the traffic. I didn't see any big differences in mileage between the tank with Stanadyne added, the tank with PowerService added and the tank with no additive (all #2), BUT I can definitely hear the injectors a LOT more without the additive. Fill 'er back up with additive and in about 20 miles she went back to quiet. I can't wait to make the return trip in a few weeks.
 
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Old Apr 14, 2006 | 05:12 PM
  #7  
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People underestimate the importance of the engine reaching proper temperature for efficient operation. As the outside temp comes up, is easier to reach more efficient operating temp.

Many people have switched to the 203 degree thermostat. It runs warmer all year round, but makes a big difference in winter running efficiency (and a better working heater).

EDIT NOTE - the PSD was designed by Navistar with a 203 degree thermostat. Ford switched to a 195 to reduce nitrous oxides.

You CAN'T run an International thermostat in it, as Ford redesigned the water pump for whateverreason. There is at least one company that makes a 203 thermostat for the Ford PSD. I don't know if any sponsors carry it.
 

Last edited by arninetyes; Apr 14, 2006 at 05:18 PM.
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Old Apr 14, 2006 | 06:38 PM
  #8  
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My Mileage started going up last week also!!
 
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Old Apr 14, 2006 | 08:59 PM
  #9  
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pmasley
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From: Eccles, WV
Talking Winter Blend is GONE!

The fuel has changed from the winter blend. WOHOO!!!!!!!!!!!

This news is from an Exxon/Mobile rep I know.
 
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Old Apr 15, 2006 | 01:15 AM
  #10  
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From: Colorado Mountain Country
Originally Posted by pmasley
The fuel has changed from the winter blend. WOHOO!!!!!!!!!!!

This news is from an Exxon/Mobile rep I know.

That was gonna be my comment as well, that winter blend is hard on mileage. Still using winter blend here in CO, bummer.
 
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Old Apr 15, 2006 | 02:28 AM
  #11  
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From: Columbia, MO
Originally Posted by arninetyes
Many people have switched to the 203 degree thermostat. It runs warmer all year round, but makes a big difference in winter running efficiency (and a better working heater).

EDIT NOTE - the PSD was designed by Navistar with a 203 degree thermostat. Ford switched to a 195 to reduce nitrous oxides.

You CAN'T run an International thermostat in it, as Ford redesigned the water pump for whateverreason. There is at least one company that makes a 203 thermostat for the Ford PSD. I don't know if any sponsors carry it.
Dieselsite sells the correct sized 203* thermostat.
Link here:
http://www.dieselsite.com/index.asp?...ROD&ProdID=186
 
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Old Apr 15, 2006 | 10:36 PM
  #12  
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arninetyes
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Is Dieselsite a sponsor?
 
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Old Apr 15, 2006 | 11:58 PM
  #13  
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jtharvey
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From: Columbia, MO
Negative. I missed the sponsor part of your post. I guess I got ahead of myself a bit. I don't know if any sponsors have it either.
 
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