Alternative fuel section

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Re: Alternative fuel section

Postby dmerlin25 » Sat Apr 02, 2016 3:53 am

That's what the trucks fuel filter is for. I do burn through 1 every 3000 miles when I'm running more than 50% oil. I don't think much gets past it. The better you filter before you put it in the tank the longer it lasts. I always keep 3 or 4 extra behind the seat. I've thought about a heater for the filter that's kinda like a heated beer cozy. That should allow my cold weather mix to be a little thicker and help with the big temp changes I have out here.
Never shoot a large caliber man with a small caliber bullet. Semper Fi
1993 W250 LE G360
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Re: Alternative fuel section

Postby spencerdiesel » Sat Apr 02, 2016 6:47 pm

I agree with bigger contaminants, but our factory fuel filters are 20-25 micron. A lot of people running motor oil/ATF say its the little hard particles under 5 micron in size that wear the fuel system the most.......

Which leads me to think thats because the 5 micron and under particles are the ones that slip through our nominally rated 1 micron filters
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1 turn
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Re: Alternative fuel section

Postby dmerlin25 » Sun Apr 03, 2016 5:56 am

I've never used the factory spec fuel filter. Nothing fancy, just a 5 or 10 micron equivalent.

I'm sure slip through will happen. That's why I think the centrifuge is a better idea, though I've never used or seen one. I wouldn't hesitate to keep doing what I've been doing.

How clean do you think pump fuel is really?
Never shoot a large caliber man with a small caliber bullet. Semper Fi
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Re: Alternative fuel section

Postby spencerdiesel » Sun Apr 03, 2016 1:31 pm

That's where I give you major props :D If your pump and injectors are still doing well after that much waste oil, your doing something right :) I've got a dual fuel filter head and am going to go with 8-10 micron FS, then a 2-5 micron FF

I agree about pump fuel too, I'm just always leery about our waste fuels that could have metal contaminants, as opposed to dust/dirt/junk in pump fuel. But I guess dirt/abrasives could be just as rough on stuff as metal particles

If it works (and has) for you, ill do it too.
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1 turn
Muffler delete
spencerdiesel
14mm rotor
 
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Re: Alternative fuel section

Postby dmerlin25 » Sun Apr 03, 2016 2:26 pm

The best oil is non synthetic from BIG motors. Like at a big rig shop. They are usually all too happy to give it away so they don't have to pay to haul it off. The oil I got from the oil rigs was from the gen sets that had 3 Cat 3512's running around the clock.
Never shoot a large caliber man with a small caliber bullet. Semper Fi
1993 W250 LE G360
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Re: Alternative fuel section

Postby spencerdiesel » Sun Apr 03, 2016 3:20 pm

Do you blend before it goes in the truck?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1 turn
Muffler delete
spencerdiesel
14mm rotor
 
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Re: Alternative fuel section

Postby dmerlin25 » Sun Apr 03, 2016 3:59 pm

Unless I'm gonna run 100% oil, I always mix in a drum till I like the viscosity/thickness. I only ever ran 100% on the hottest days 90+ degrees. That's pretty hot for Montana anyways. A casual observation was that 80/20 Oil to diesel was half as thick as 100% It thins down pretty drastically.
Never shoot a large caliber man with a small caliber bullet. Semper Fi
1993 W250 LE G360
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Re: Alternative fuel section

Postby spencerdiesel » Sun Apr 03, 2016 5:34 pm

What's the coldest you've run it before? Ever tried 50/50 oil/kero?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1 turn
Muffler delete
spencerdiesel
14mm rotor
 
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Joined: Tue Oct 27, 2015 4:02 pm
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Re: Alternative fuel section

Postby dmerlin25 » Sun Apr 03, 2016 6:11 pm

Anything below 25 I would stick around 10 or 20% oil. Anything below 0 don't use anymore than maybe a gallon in a tank for performance sake.
Never shoot a large caliber man with a small caliber bullet. Semper Fi
1993 W250 LE G360
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fuel screw!!!!
 
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Re: Alternative fuel section

Postby dmerlin25 » Sun Apr 03, 2016 6:19 pm

Keep your mix outside so you can see how thick it is at each time every fill. Oil adds alot of energy to the diesel. Even a little in winter mix diesel makes a big difference. If you are driving around and the temp drops and you IP starts complaining, head to a pump and top it off with #2. Or #1 if you have a mostly full tank. I remember doing that a few times, adding 3 gallons #2 to thin it out.
Never shoot a large caliber man with a small caliber bullet. Semper Fi
1993 W250 LE G360
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Re: Alternative fuel section

Postby spencerdiesel » Tue Apr 05, 2016 8:46 am

Cool good Info, awesome to use it that cold.
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 1 turn
Muffler delete
spencerdiesel
14mm rotor
 
Posts: 865
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
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