Biofuel blend, runs a while, stops, rests then starts again.

[4everlearning]

Me either Other then people saying DO NOT DO IT. On the other hand I dont see much of a problem mixxing WVO with diesel But I dont think I would go over 20% if I went that high.

[Rob]

there was a lady recently, driving a duramax, that i towed to a Walmart parking lot cause her truck died in an intersection. i later found out through a good friend that she took her truck to the local chevy dealership and they discovered gasoline in her tank and fuel system. they asked her about it and she said admitted, yes, she did infact fill up with regular unleaded because she didnt want to pay the higher price for diesel. she needs a new motor now from what i understand. customer pay, no warranty because she neglected to fill up with diesel.

[4everlearning]

Originally Posted by Rwalker

there was a lady recently, driving a duramax, that i towed to a Walmart parking lot cause her truck died in an intersection. i later found out through a good friend that she took her truck to the local chevy dealership and they discovered gasoline in her tank and fuel system. they asked her about it and she said admitted, yes, she did infact fill up with regular unleaded because she didnt want to pay the higher price for diesel. she needs a new motor now from what i understand. customer pay, no warranty because she neglected to fill up with diesel.

If she didnt want to pay for diesel then she should have gotten a gasser instead. How dumb can you be?

[jackofalltrades1980]

I would have to admit that using straight gasoline would be bad....I did hear of people using WVO/gasoline blends as well as combo WVO/gasoline/diesel blends too....Of course some of these people lived in warmer climates...As far as updating, I did run the truck a while and it did start doing the same thing it did the night this incident happened, with all the same things, let it set, it starts back up after a few, well as far as the blend in the tank, I did dump an equal amount of diesel to get it to some consistency close to regular diesel once again, at least to run it out. I did seem to have good luck with the 50/50 blend though. Its starting to look more and more like the truck's computer is being told to shut down after reaching a maximum threshold (high fuel pressure, oil temp, etc?). Of course I'm not gonna try the gasoline idea again, I was just thinking about the idea that if straight WVO could be run through these things, even at 200 degrees, I couldnt see what other "damaging" issue there could be with running thinned out WVO with diesel through the same fuel system when the fuel isnt heated to such a high temp without any diesel mixed....

[95and05]

prolly a dumb question but reading that post and throwing out all the blend info it sounds to me like CPS. after it sits for a few it runs again. do you have the new CPS yet?

[4everlearning]

If you dont mess up then you never learn. Next time tho I would do a bit more research. Also You really need to change both filters AGAIN. When changing to just Biodiesel it is recamended that you carry a couple extra fuel filters with you because they WILL get plugged up from the oil in the fuel "cleaning out your tank and lines". I hope you get things straightened back out.

[Sciulli]

...Wow....

[jackofalltrades1980]

This might be a stupid question also, but whats the CPS? Just for future reference, how does it factor into the equation? Im definately thirsting for more knowledge to help make this thing work. There is a point about the fuel filters as well...I still cant get over how the thing almost runs flawlessly with the fuel, except for the stopping and resting situation....Oh well, I did throw some diesel into the tank to dilute the crap in there enough that you can smell a mixture of the rank diesel burn along with the VO. Another question I had was with the second fuel filter, I dont recall if I already asked but if I did, I need to pay more attention, but anyway, where is the other fuel filter, I know of the one on top of the engine behind the injector pump, but I dont recall seeing another one, even along the frame rail. Again, I love info.

[ponypop]

The CPS is the cam position sensor it is located on the front of the engine on the passengers side in the front. You need a 10mm and a flat screwdriver to change it they cost about $20. I do not know of any other filter than the one behind the injection pump. As for your fuel, I think what you are doing sounds fine, I have logged over 200,000 miles on home made fuel. I have been making my own long before most people jumped on to the home made fuel band wagon. That is I have been making my own fuel for about 10 years, I make it 100gal at a time and use 55gal used oil, 12 gas, and 33 diesel and it works. Regardless what others say it works and my trucks have always ran good on it as well as my D-8 bulldozer, combine, and three tractors. So if you add up all of the thousands of gallons in the farm equipment and the 200,000 miles in the powerstroke I would say it is your truck and if you have a formula that works for you then do it. I for one have no problems in the summer or when the weather gets down in the teens the fuel always works.

[jackofalltrades1980]

Ok brain fart, CPS is the cam position sensor...Anyway, after doing a little research, it would sound like that is possible, but still doesnt explain why it did it when running that first fuel blend....Would really suck if it was just a strange coincidence that the damned thing went out at the same time I was using the fuel blend...