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Question About Mo
96 7.3 PSD, 5 inch exhaust stacks with no restrictions
I'm running my truck on filtered straight WMO (with no preheating) and I'm experiencing strange things happening in my new experience on MO.
I filtered to 5 microns and poured into my auxiliary tank. I can easily switch between WMO and diesel fuel.
On diesel fuel I've seen that the EGT runs 700 - 800 degrees while cruising on fairly flat freeways with the temps climbing to over 1000 when pulling a hill. I haven't pulled a load enough to be able to speak about those temps.
When I first experienced loss of power, I changed the fuel filter and the truck accelerated normally up past 75MPH when I romped it. But then the loss of power returned.
What I'm finding is that when I run it on MO, the engine loses power and even stalls when running on MO. What I find is that mornings when starting cold I can drive anywhere to 25 to 35 miles before the engine starts to bog down and lose power. I then switch to straight diesel fuel (with the engine still running) and it immediately runs normally. The engine temps run a bit higher than normal - about 800 and climbs to 1100 when pulling a grade or long acceleration.
Afternoons, after work, I make the attempt to drive back home on MO. The truck starts normally and all seems well as I drive thru about 15 minutes of city traffic and get on the freeway. However, in almost exactly the same spot (level freeway) the engine bogs and won't accelerate so I have to pull off the road and switch it back to diesel fuel. I've also noticed the EGT is running about 800 - 1000. Even after I switch back to diesel fuel, it still is running what seems abnormlly hot to me. After a few miles, the temps come back down to normal. The water temp never climbs any. It's only the EGT that tells the tale.
I checked the sock filter in the tank for restriction. Clean. I then checked the fuel line from the tank to the changeover valve and found no restriction in it.
My questions to those of you running MO now are:
For those of you running straight MO, did you have any problems when you did it ?
If you're running a blend, what percentage are you running ?
What EGT do you see when running diesel fuel and then, what temps do you see on MO ?
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I like BIG, LOUD, heavy trucks, light, tiny women, shooting,  and BIG glasses of heavy beer  (not necessarily in that order, either  ).
http://www.youtube.com/watch?v=-TC2xTCb_GU
The little gal I bought my truck from called it her "COWGIRL HARDWARE".
I call it "LURCH" !
96 F250 4WD, 35 INCH TIRES over a inch lift kit, DUAL 5 INCH STACKS (sounds pretty darn good), BLACKed OUT WINDOWS, SNOW PLOW
CENTRAL OHIO
Oh yeah, I LOVE my carbon footprint !
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