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My guess would be above 60 degrees F, you could easily run 25% filtered WEO/75% diesel (maybe even a 50/50 mix, but that might strain the injection pump except in very warm weather). From 32 defrees F to 60 degrees F, I'd use 30% WEO, 20% kerosene and 50% diesel. Below freezing, I'd use 25%...

True, I misspoke. What I should have said was that as the motor oil is more highly refined the paraffin doesn't settle out like it does in diesel, thus it could have the effect of lowering the cloud point of the mixture.

An interesting question. On the one hand, the WEO is going to get more visious as the temperature drops. On the other hand, it does not contain paraffin/wax, so it should also lower the cloud point of the mixture. Then it becomes a question of when the WEO/DF mixture becomes too visious for the...

IMHO, I would personally use the transfer pump to pump the oil into a "dirty oil" transfer drum, then when you get it home filter it through a high efficiency bag filter. I wouldn't want all the crude and gunk from some else's oil pan running through my fuel injection system!

Coffee filters are OK, but I don't know how fine they filter. I bought some bag filters from McMaster-Carr, http://www.mcmaster.com/. If you go to their home page, look under "Pumping and Filtering", then click on "Filter Cartridges and Bags". If you read through that section, there is a lot of...

Eric - I HOPE your home is heated by oil. Using HHO to fuel an on road diesel vehicle is illegal! (Grin, chuckle, giggle, etc.)

RE: Re: Heating oil Home Heating Oil is NOT "just a highly refined diesel oil". I have lived in homes heated with HHO for most of 30 years. HHO comes in two grades, fuel oil #2 (basically the same as #2 diesel) and fuel oil #1 (basically the same as #1 diesel), probably without a few of the...

RE: oil Don't know if I'd be too excited about running waste engine oil directly from the sump to the tank. WEO, especially diesel WEO, has s lot of soot in it (unless you are running a high efficiency bypass oil filter). The soot (unburned carbon) particles run in the 20-60 micron range, big...