First off I have been filtering and blending 50/50 WVO in the main tanks in my Dodge and MBs for a few years. I have a 83cd that will not start on grease but will run on it, so my plan is to two tank it by installing a plastic boat tank in the trunk for diesel and replumbing the main tank to run an aluminum line over to the exhaust and letting the exhaust warm the grease as it moves up towards the IP. Is there a problem with that idea that I haven't thought of?

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I LOVE CATS....AND FRIES

1981 300sd
1983 300sd
1985 300d
1983 300cd
1991 350sdl

Exhaust temp is not consistent at all and it will not work. A proper two tank conversion is not that hard and a lot cheaper than 50% diesel.

Exhaust heat is highly variable. It is not a good idea. It will be too hot, or, too cold, it will rarely be just right.

Use coolant for heat, it is just right.

Do this: 1991 350 SDL Conversion to WVO

In your southern location, you may be able to get by without the flat plate heat exchanger.

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Greg
2012 S350 BlueTEC 4Matic
2007 ML 320 CDI
2007 Leisure Travel Serenity
2006 Sprinter 432k
2005 E320 CDI
1998 SLK230 (teal)
1998 SLK230 (silver)
1996 E300D 99k, 30k on WVO
Previous:
1983 240D, on WVO
1982 300D, on WVO
1983 300CD, on WVO
1986 300SDL 237k, 25k on WVO (Deerslayer)
1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix
1983 380 SEC w/603 diesel, 8k on WVO
1996 E300D 351k, 177k on WVO

x3. You cannot "control" exhaust temps which means you cannot control the transfer of heat to the WVO. With coolant heat transfer, you know you will never get over 180-ish. It is brutually hot in S.C., but I still advocate a 2 tank system. I ran 1 tank for over a year and never an issue, but 2 tanks is the safest route IMO.

I used a boat tank for my diesel,fattywagons wires to heat it,and heatexchanger.The wires I made a thermstat to turn off heaters,when heatexchanger was hot.I had manual valves.But I did a mistake by using main tank for 50/50 mix.The animals proteins ( the dreaded chicken skin ) took two years to clear from tank.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

I heard it discussed, but I've never heard of it being done. I think people worry about getting the grease line too hot. Two tank systems I hear of are generally, coolant heated or electrically heated, or both. Both of these systems benefit from a thermostat- coolant temp is regulated by the engine thermostat and the electric heaters can be made from Positive temperature coefficient (PTC) elements that self-regulate to a specified temperature.

User GregMN has a link to his sharp coolant heated design somewhere.
Fattywagon (no relation) sells line heaters.

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CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times

It's hard to

more likely to

concentrate on

have an accident

two things

when you're on

at the same time.

a cell phone.

www.kiva.org It's not like there's anything wrong with feeling good, is there?

make that 2.5 and still having problems with chicken skin.I had tank off and cleaned,with cleaning solvent.When I have time I will use old tank as a mold,and make me a fiberglass main tank.Grease was fun until the rendering company got tight with the health department,and forced all eateries to use a render service.Thhey claim it keeps down the rat,population.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran