Gas in deisel question.
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Elder User
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Gas in deisel question.
Had a customer towed in because they but half a tank of deisel in there gas van. we are going to drain and clean the tank and system. But we are debating on how to deal with the rest of the fuel. Right now it is a 50:50 mix. I was curious to know if I where to delute this ALOT (say maybe put 5 gals in every fill up ) and maybe even increase the deisel kleen/ cetane booster and add some 2 cycle oil will this work in my 2001 7.3.
I know these engines are pretty beefy but I also don't want to burn the injectors. could this work?
I know these engines are pretty beefy but I also don't want to burn the injectors. could this work?
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From: Highland, IL
7% of gas can be mixed in with the diesel MAX. That is the rule for fuel trucks when they switch tanks between different fuels. I have had a similar problem in my shop and we got rid of the mixed gas by dumping it in our large trucks at a 5% ratio to be on the safe side and had no problems. Just look at it this way, when you go to the pump and fill up you could be already getting some gas in your diesel.
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Thanks for the quick response my boss is affraid he was going to have to pay to send it away (the service writer did not account for that) because we can not mix it in with used oil (they test it everytime)
I knew these engines where tough, heard of peaple running almost pure vegitable oil in the 7.3.
So it looks like I may have some free fuel that could save me about $80 cool. thanks again.
I knew these engines where tough, heard of peaple running almost pure vegitable oil in the 7.3.
So it looks like I may have some free fuel that could save me about $80 cool. thanks again.
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I run any where between 20 to 40% gas as a solvent in my fuel. Keep in mind my fuel base starts out with either used motor oil, vegetable oil or turbine lube oil. Been doing it for years and so far I have no known issues. I do this to cause the fuel to become more liquid like so the pumps can move it easier.
7.3's are tough!!
7.3's are tough!!
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I run any where between 20 to 40% gas as a solvent in my fuel. Keep in mind my fuel base starts out with either used motor oil, vegetable oil or turbine lube oil. Been doing it for years and so far I have no known issues. I do this to cause the fuel to become more liquid like so the pumps can move it easier.
7.3's are tough!!
7.3's are tough!!
I put about 2 gals of the 50:50 mix in the roughly 3/8 tank I had today (did that so if there is a prob I can thin it out right away with real diesel) I have not really noticed higher temps, but I did notice a little more "pep" and faster turbo spool? maybe a result of higher exhoust temp.
I am actually kinda liking this it is almost acting as a cetane booster.
Any one else have any thoughts on this?
Tuned
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From: AL, Reform
i dont know about diesel but it is put in to oil to help with viscosity and the BTU to make it burn better but it makes it burn hotter.
if you want to help lub add ATF
if you want to help lub add ATF
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I take it you make your own fuel? I have been wanting to do that. (upside to the 7.3, can run on almost anything)
I put about 2 gals of the 50:50 mix in the roughly 3/8 tank I had today (did that so if there is a prob I can thin it out right away with real diesel) I have not really noticed higher temps, but I did notice a little more "pep" and faster turbo spool? maybe a result of higher exhoust temp.
I am actually kinda liking this it is almost acting as a cetane booster.
Any one else have any thoughts on this?
I put about 2 gals of the 50:50 mix in the roughly 3/8 tank I had today (did that so if there is a prob I can thin it out right away with real diesel) I have not really noticed higher temps, but I did notice a little more "pep" and faster turbo spool? maybe a result of higher exhoust temp.
I am actually kinda liking this it is almost acting as a cetane booster.
Any one else have any thoughts on this?
I read an article in a magazine recently that I like to apply to the Navistar PSD 7.3 "This engine will run on anything that resembles diesel!" Trust me when I tell you this, I have experimented with lots of types of oil on this engine and it truly was designed to be a multi-fuel engine. My biggest enemy of making fuel is making the fuel resemble the fluid like of diesel just so the the transfer pump from the tank to the fuel seperator can work properly. I have found that if I can move it to the seperator then the HPOP will drive it to the the injectors!
As for Gas in this engine, I have known people to fill the tank almost full with gas and the truck ran real rough for a couple hundred miles till they realized they accidently pumped gas and then topped it off with diesel and things were better.
Hope this sets your mind at ease.
Kevin
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Thanks for all the feedback. we pulled roughly 14 gals from it, I have used about 5 gals so far and filled the tank today with regular deisel. Our biggest concern is how to dispose of the fluid becouse safetykleen tests the used oil for coolant, gas, and deisel fuel. If there is too much they wont take it without extra fees. and that is what my boss was worried about. I thought these engines could run on pretty much anything solong as it explodes. But then I started thinking about how gas engines would "deisel" and it is from the gas pre igniting from the heat. So I was starting to worry about it "igniting" in the injector I was worried about it "Burning" them. But you have really put my mind at ease, I may just dump the rest of the 8 gals of 50/50 in the tank and see what happens.
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Thanks for all the feedback. we pulled roughly 14 gals from it, I have used about 5 gals so far and filled the tank today with regular deisel. Our biggest concern is how to dispose of the fluid becouse safetykleen tests the used oil for coolant, gas, and deisel fuel. If there is too much they wont take it without extra fees. and that is what my boss was worried about. I thought these engines could run on pretty much anything solong as it explodes. But then I started thinking about how gas engines would "deisel" and it is from the gas pre igniting from the heat. So I was starting to worry about it "igniting" in the injector I was worried about it "Burning" them. But you have really put my mind at ease, I may just dump the rest of the 8 gals of 50/50 in the tank and see what happens.
Tuned
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For what it's worth... in '04 I spoke to an International / Ford R & D guy (who was also retired from the Navy as a jet mechanic and/ in aircraft testing, with some of the pioneers such as Kelly Johnson) who said the 7.3 was the best and most hearty diesel engine to date. Said the 7.3 would burn "cow manure" (toned down what he really said), if you could figure out a way to get it in the engine.... He was irritated Ford went away from the 7.3 instead of building on what the 7.3 had to offer. Instead of advancing it by incorporating today's advancing technology.
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