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used motor oil?

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Old 11-16-2005, 04:50 AM
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twags6 twags6 is offline
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used motor oil?

I've heard a few guys here saying they've mixed filted used motor oil in with the diesel fuel and used it in their trucks. Is this something worth doing, or will it cause more harm then good?

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Old 11-16-2005, 05:14 PM
goodie350 goodie350 is offline
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An old neighbor of mine first told me of this but he would pour it directly in without filtering it. He claimed the fuel filter would clean it good enough. It was an older cummins and had over 400K miles on it but I know he had to rebuild the injector pump and replace injectors before. Not sure how often he had to or if running the used oil had anything to do with any premature wear or if it was just time for him to replace them anyways.

I think it would do more harm than good but that is just my opinion. I just don't think the price of fuel savings would offset replacing even a few injectors or the injector pump, not to mention the time it would take you to filter it real good.
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Old 11-23-2005, 01:09 PM
D-town Dan D-town Dan is offline
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Even if you the truck did run well with the oil mix, the emissions would rocket out of specs (If that's even an issue).
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