How to raise MPG on high milage 6L - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 11-09-2013, 12:16 PM Thread Starter
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How to raise MPG on high milage 6L

Hello,
I have a 2006 F350 with a 6L power stroke. It has reached 350,000 miles and I am only getting around 400 miles per tank vs 500 to 600 that I used to get. What can I do to raise the mileage? Is there any maintenance that I need to perform (such as spark plugs) that would help?

Thanks,
jimmy
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post #2 of 3 Old 11-09-2013, 12:27 PM
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Originally Posted by jimmyfromwv View Post
Hello,
I have a 2006 F350 with a 6L power stroke. It has reached 350,000 miles and I am only getting around 400 miles per tank vs 500 to 600 that I used to get. What can I do to raise the mileage? Is there any maintenance that I need to perform (such as spark plugs) that would help?

Thanks,
jimmy
Spark plugs???? OH BOY, first off read up on your diesel.
Here's some good reading materials.
Powerstroke Info
If your injectors are high mileage there's not a whole lot you can do. Could try an economy tune to see if that helps.


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post #3 of 3 Old 11-09-2013, 12:27 PM
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you do not have to worry about sparkplugs....diesel uses compression and heat ...i would run a couple flushes for the oil to clean out and possible sludge and the same with the transmisson and the diff over time your exgusht pipe will build carbine and cloge up and clean injectors change airfilter piping to turbo and everything from turbo to intake manifold is gonna have carbine that builds and cloges....pretty much if you can think of it...its dirty and a good cleaning will help bring miles back if not add some
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