I went to buy more filtered oil and he pumped 20 gallons directly into tank (no heat) to mix with my 10 gallons diesel. From his house about 10 miles down the road it started loosing power, until I was stuck on the side of the road.
white junk on the bottom
ok, thats what i needed to hear.
Id be weary of this guy, anyone who dumps in straight veggie oil in any quantity better know exactly what your truck is running, and i get the hint he does not if he is dumping that much oil into a unconverted system.
That is wayyyyyy too much oil for the amount of #2 you were running in an unheated system. I have had good luck running up to 35% oil per diesel in a unheated system which is roughly 5 gallons in my truck. More then that and you get a lot of buildup/carbon-oily residue in the cylinder from the oil. Very hard cold starting and the cold oil will 'clog' your oem filters until it heats up on very chilly mornings.
My advise; run a tank of 100% diesel to clean the oil out of your system so you know what you are starting with. Then proceed without Colonel Veggie's help. Id run some fuel additive to try and clean out your fuel system, but it wont make that drastic of a difference if you decide not to. (i always run fuel additive, i could get into the water issues but id rather not. Just run some with each tank and be happy)
Replace your filters right after you fill up with #2. Even if you replaced them last week, id replace them again. Then cut them open and post pictures so we can all get a good laugh at your expense.
Im just kidding man, but you might be amazed how much crap is in there. Or they might be clean. Who knows, but if you are seeing water fall out of the oil sample you took... i have a hunch its going to be funny/scary.
that white crap is most likely settled water and bad news. Id also suggest if you are going to buy your oil to get a better supplier because that is unacceptable. If you are getting it for free, hey, who's to complain.
No matter what oil you use you will want to be sure of its quality or do the steps yourself if you are not sure, or if you dont believe the guy.
Google "wvo drying", "drying waste oil" "filtering wvo" and similar searches. Read all those articles and see what works best for you and build that setup. You will also need to filter the oil and those options vary greatly. The more drying/filtering you do out of the car, the less filtering you will have to do in the car, and the longer old smokey (your truck) will run.
I can post pics of my setup if you care to see what my solution is, but i dont want to skew you away from what might be best for your solution.
Either way, you will have to dry it and filter it down to X micron. (I say 2 micron, some say 5 micron, some say 10, some say 20.) Do a lot of reading and decide whats best for you. Take everything (even this post) with a grain of salt. What works for me... well you know.
then you will need to build a filter setup in your truck. the oem filters are a joke if you are going to be running a lot of mystery fluid through it. Dont take this as a flame or anything, i am in the same boat as you and lord knows i dump all sorts of trash into my tank. But with a good filter setup you can do a lot less worrying and get a lot more miles out of your fuel system.
Google "2 micron fuel filter" or "dual fuel filter" "DIY dual fuel filter" and you should get some good hits from the common diesel boards. The common setup is 2 of the napa filter head (3772? 2377? 3774? something like that) with a 10 micron filter with water sep, then a 2 micron filter. Again, i can get you real numbers if you get stuck.
So you run these two filters after your lift pump but before your oem filters. These big filters last a long time and they work worlds better then what came in there from GM. Added bonus, these wix filters are a lot cheaper (and easier to replace) than the facotry filters. So as the years go on, you just replace these and leave the oem filters there forever.
But for now on your truck like i said, id run 100% diesel with an additive and flush out the tank. Add the DIY dual filter setup then dry/filter your WVO and add it in small increments until you start to notice bad things are happening. Id be suprised if you get over 40% before you start to notice issues.
and keep in mind, the more cold oil you run (even when mixed with #2) the more deposits and buildup you are going to get on your glow plugs, injectors, cups, pistons...
Also worth a mention, BioDiesel does an excellent job of cleaning out your fuel system and combustion chamber. Tank, lines, injectors, pistons, its amazing. Its also amazing how quickly your fuel filters will trap this crap and become clogged. So dont be suprised if you need to replace them in short order after starting to run BioD.
So you might consider running a tank of BioD every now and then if you are running WVO. but here again, be sure of your source and getting good fuel.
