waste motor oil

can i use used motor oil for combustion in my diesel, or does it have to be veggie oil???

It depends on the engine. I

It depends on the engine. I have done it with an old 6.2 GM diesel but experienced a great deal of coking. I'm currently trying various methods of water and propane injection to see if it improves the situation.

As is, I can go about three thousand miles before I notice any alteration in engine behavior. At which point I pull all the glow plugs, clean them and reinstall then spend the next few days doing the injectors. I generally pull the injectors two at a time, clean them, reinstall and fire up the engine to avoid any high pressure fuel bleed hassles. I could do the whole show at once but I don't like to be that hard on my starter.

I generally pull the

I generally pull the injectors two at a time, clean them, reinstall and fire up the engine to avoid any high pressure fuel bleed hassles. I could do the whole show at once but I don't like to be that hard on my starter.

erreauk

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