12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

do our trucks need oil in fuel?

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Old Sep 23, 2011 | 12:17 AM
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alexbland's Avatar
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Default do our trucks need oil in fuel?

i herd alot of people run TECH TWC-3 from walmart. how much do you put in for a full tank
 
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Old Sep 23, 2011 | 04:56 AM
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12V's don't really need it since the injection pump is lubed by engine oil, the only pump to do so on all of the dodges (lucky us). However, the lift pump does get lubed by fuel and does enjoy a little dose of 2 stroke or biodiesel. Usually you just dump a quart in per fillup or 128:1. Our trucks are not finicky and will burn it in any ratio.
 
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Old Sep 23, 2011 | 06:37 AM
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thats what i do on my 6.7
 
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Old Oct 1, 2011 | 12:54 PM
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thats the great thing about owning a cummins... itll burn almost anything oil based... diesel oil used oil trans fluid brake fluid just about anything... now u might need to filter used fluid a little however they will burn it
 
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Old Oct 2, 2011 | 01:20 AM
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I dump 2 stroke in, 1 qt per fillup.
 
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Old Oct 3, 2011 | 08:17 PM
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my bro puts about a quart in every fill up, says he gets better mileage and helps lube everything since all the pump diesel is ultra low sulfur crap
i run tons of used oil and atf thru my truck so im good on lube there
 
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Old Oct 7, 2011 | 03:57 PM
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iv ran 80w oil to used filtered 15-40 rotella... it just helps lube ur moter... now to strong of a mix might make ya smoke blueish haze but it wouldnt be a bad engine sign just ur fuel mix is a lil rich... i usually run a half ga to a full 36 ga tank of fuel and im fine
 
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Old Oct 7, 2011 | 08:06 PM
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same here bout a quart a fill up,,
 
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Old Oct 8, 2011 | 06:20 PM
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in the winter you might want to thin it out a bit depending on how cold it gets
 
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Old Oct 10, 2011 | 03:27 PM
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If you run it to thick in the winter you will lose hp and it seems like you are running out of fuel...just heads up...been there done that...
 
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