how much is to much fuel conditioner - Ford Powerstroke Diesel Forum
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Old 01-27-2008, 03:09 PM
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how much is to much fuel conditioner

1992 f250 7.3 non turbo.truck ran good until i added some fuel conditioner.started to run rough so i added more fuel conditioner.now the truck wont run less then 1500 rpm.i thought it was the fuel pump so i checked it and it has 17 on the vacuum gauge.what happens when you add to much fuel conditioner
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Old 01-27-2008, 03:33 PM
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I`m not sure about other brands but Lucas has on the label that if you add too much it will not hurt the system in any way.
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Old 02-06-2008, 04:42 PM
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Overdoing the conditioners won't hurt a thing, unless you've managed to "ungunk" the whole fuel system. Change your fuel filter. I've stuck a gallon of canola oil in mine regularly to clean injectors up, and I don't have any problems other than I know to change the fuel filter every fall
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Old 02-06-2008, 04:51 PM
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canola oil???? does that resemble the conditioner and how much diesel with that 1 gallon? thank you
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Old 02-09-2008, 09:12 AM
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I always fill my fuel filter with straight Lucas on both my diesels when I change them just make sure your engine is warm or it's hard to get started but when warm it fires right up
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Old 02-09-2008, 09:41 AM
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how often should i change my fuel filter?
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Old 02-09-2008, 10:04 AM
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I've been changing mine at every oil change but thats probally a little excessive let see what some of the long time owners have to say
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Old 05-03-2008, 10:42 AM
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15k i think.
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Old 05-03-2008, 05:16 PM
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If you drive it rough, have dusty conditions, or tow a lot, then every oil change or 5000 miles. I change mine every other oil change or 10,000 Miles w/no problems.
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