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Gaining Power?

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Old Jun 19, 2005 | 04:23 PM
  #1  
massdog_FX4's Avatar
massdog_FX4
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From: Northern California
Gaining Power?

Is it just me but as I gain in mileage(just broke 500) is the engine pulling harder? it feels that while passing, or acceleration its pulling through the gears harder and quicker? do these 5.4's(mine is not modded. . . . . YET) "break in" ive never had a new engine so dont know what to expect. input would be greatly appreciated-MassDog
 
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Old Jun 19, 2005 | 05:57 PM
  #2  
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ChrisAdams
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Most drivers of both the 5.4 and 4.6 report a break-in and more power afterwards.

Chris
 
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Old Jun 19, 2005 | 06:11 PM
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Marcus6679
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From: Bridgewater, NJ
I experienced the same thing, as well as an increase in fuel economy. The first few times I fueled it I was getting around 12.7 to 13.3 mpg, then after about 1,000 miles I was getting between 14.7 and 15.2, mostly city driving.
 
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Old Jun 19, 2005 | 06:49 PM
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massdog_FX4
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From: Northern California
checked mileage after first tank- results were favorable 26.6 gallons at 414.9 miles+15.59mpg pretty darn good seeing how this lead wont come off my right foot,


Tried everything grinders, laquer nothing seemed to work until i got behind the wheel of a chevy(hahaha just kidding I would never drive a chevy)
-MassDog
 
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Old Jun 20, 2005 | 03:29 PM
  #5  
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bulletbaby
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From: Rosemount,MN
This is normal with new engines. My truck has 500 miles on it and i can tell its starting to break in. The mileage is getting better and more power
 
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Old Jun 21, 2005 | 11:30 AM
  #6  
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BruceFX4
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From: Boise, ID
Mine really started running better after ~3200 miles. There have been posts earlier mentioning that some F150s take up to 10K miles to be broken in.
 
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