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Old 04-05-2010, 04:23 PM
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ROAD TRIP TO KY!!!

I took a trip home to kentucky from NC this weekend. Drove up throught NC and Virgina and WV into KY. Going through NC i was getting about 10-11 mpg. i stopped in Virginia and filled up also put some Klean Diesel in it. My mpg went up to about 13-14 even with the moutain driving. all in all im not happy with my mileage. i know there have been several threads on here about mileage and ive read them some people are saying the in tank mixer valve mod and the pre pump mod will help. I have a 2000 F250 crew cab short box, diy intake, 315/75/r16 BFGs all terrains, muffler delete, resistor mod, tq lockup, the truck has 124xxx miles on it my driving habbits while on the road trip were conservative and i was not hauling anything. I know you guys are tired of the MPG threads and questions but any info at all the help me out with this i would really appreciate it. Also can any one tell me what the in tank mixer valve mod and pre pump mod are? thanks in advance guys!
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Old 04-05-2010, 06:00 PM
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should probably do the prius mod...classic, i had too man
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Old 04-06-2010, 03:08 PM
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Quote:
Originally Posted by TXsmoker View Post
should probably do the prius mod...classic, i had too man


My tank is fed up. I got to fix it. When I get to quarter tank i get horrible fuel mileage and I run out right when the light comes on and needle is still up
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Old 04-06-2010, 06:09 PM
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yeah..kycopespitter was saying that his fuel gauge is acting up also....but wonder why yall are gettin such crappy mileage??
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Old 04-06-2010, 06:16 PM
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It was explained to me. let me see If I can explain it......

There are 2 tubes running into the tank together. 1 to the motor and 1 from the motor....

There is a 'splash guard' that stops the return fuel from interacting with the fuel going to the motor. When this guard falls off the return fuel is shooting straight down and disrupting the flow for the suction.
Resulting in air bubbles and stirring up the crud in your tank (if any)

So when the fuel is low its air bubbly instead of just being submerged in an undisterbed fuel bed..

This is what I was told by a performance shop here. we were just talking trucks and we got to talkin about it...

I think I explained it pretty well....
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Old 04-06-2010, 06:26 PM
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I did a similar trip a couple weeks ago from knoxville to Lexington, to highhat back to knoxville. Overall got around 18-20, used low sulfur not ultra low sulfur fuel and added diseal kleen to the fuel i got in kentucky. I have 265/75/r16 tires and had the edge set on 1. Hit the cruise around 65. The mileage really drops if you keep it around 2100rpms at least that has been my experience since I have had the truck.
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