Free Ford Tempo Diesel and GMC Diesel Pick up

[david85]

I went as 'rich' as 50/50 mix of diesel and WMO/ATF in my F250. It ran beautifully (no smoking issue and had much more torque) but there were some cold start issues with such thick fuel. The truck would still start even in relatively cold weather, but it did complain a bit. I had duel tanks so I could startup and shut down on straight diesel to eliminate the problem. I think I mentioned this before, but I would be a little concerned about your electric lift pump overheating if the fuel mix was too thick.

[vacationtime247]

I had an issue today while driving it around. Think the fuel pump might be going out. Went up a hill and it seemed to have lost power. It shut off at the next stop. Had to get out and prime the fuel by the passenger front strut. It fired right back up after. So I know it's fuel related. Think I'll add an electric fuel pump back by the tank to push fuel while it's running. Don't want it fuel starved. Might have had an air pocket in the line. Don't know. Hasn't done it again since priming.

[vacationtime247]

367 Miles and 8.011 gallons : ( @ 46mpg. My last tank was 52 mpg. Will running offroad diesel cause any noticably decrease in mpg? Weather's been getting colder and the wind has picked up substantially too. Perhaps that has some to do with the drop. Used it to drive the family to my aunt and uncles house on Christmas, the ones who gave it to me, lol.
VT247

[slowmover]

"Winter" diesel takes blame for reduced mpg that mainly belongs to colder air temps. With a winter front, block heater, and being rigorous about enough distance to warm the vehicle (fluids, tires, grease, not just coolant & oil) then the winter formulation fuel will contribute to reduced mpg. It's a secondary problem.

[vacationtime247]

Added this tonight. My wife loves it!
VT247

[vacationtime247]

Last tank was 45.81 mpg, this tank was 48.52 mpg. Since adding the Kammback I'm getting an additional 2.71 more mpg. About a 6% increase. Will leave it on and see if it holds. Certainly don't think it's hurting the mpg. Was averaging well over 50 mpg over the summer. This cold is taking a hit on my mpg. Car takes forever to get up to operating temp. Almost afraid to try and block off any of the radiator. Don't want to overheat it and really mess things up.
VT247

[Milwaukee]

I advised not use too much oil in diesel it will made engine running HOTTER which isn't good when work or long drive.


My experience on 1987 F250 2wd with 6.9L IDI. I put 3 gallons of used diesel oil from 2000 F350 powerstroke. It was 15w40. Big mistake in winter it actually harder to start with thick oil and Not had great acceleration But I went to diesel station to put tank to FULL I think 10 gallons something to try thinner oil.

When outside were 74oF I dump like 5 gallons of gas engine's oil it used. I notice funny when drive 55 mph for 20 miles it start raise coolant temp higher than I like. If I floor pedal it WORSE.

It oil that had btu were higher than Diesel. I think it was 20-50K difference.

On mileage I would say little improve if mix with oil.

On your issue with fuel starve. STOP DRIVE!

My cousin with 2000- Dodge 3500 with cummin 5.9L He had fuel pump out while drive. It kill injector pump. COST $1600 for injector pump because $50 fuel pump stop work. He say it was fine until he notice little power loss it DONE it wear out piston in injector pump I believe.

[vacationtime247]

Getting a 1988 Mercedes Turbo diesel. Aunt and uncle giving me this one after fixing their 6.5 turbo Diesel conversion van. They say it will run for a while then shut off. It will start back up after a minute and by relieving the fuel fill cap.
The Mercedes has some mechanical issues but so did the Tempo and truck. Think it will need an injector pump. Said it ran when parked but wouldn't get up to speed, like it was starved for fuel.
VT247

[vacationtime247]

Rotated the tires front to back then replace the rear back tire with a good used $30 installed, mounted & balanced. Tried taking off the belt for the serpentine. The serpentine belt runs from the crank to the a/c to the power steering back to the crank. The alternator is ran by a belt from the power steering, which needs replace now. Tried this twice on my way to work. The second time I tried this the car wouldn't start while trying to leave work. Battery was to weak. Hope that this next tank will be excellent. Going to @ 400 miles before fill up. Same top off method. Shooting for @ 52-54 mpg. Lots more coasting, no idle time, no more vibration from a bad tire.
VT247

[Christ]

Adding ANYTHING to that off-road fuel will not negate the red-dye test. They don't test it for the color, they test it for the chemical makeup of the red dye. If they find it in high enough concentration to assume you're using off-road fuel, you'll be responsible for a hefty fine.

That said, I use red fuel in my truck a lot, because I just don't really care. I also use UMO/WMO after a 5 micron sock filter, and ran the same in the diesel.

Don't let the engine keep turning if it's not getting fuel, this can damage your injection pump. The fuel lubricates the injection pump, so "running dry" can/will wear it out.

Adding a inline pump alters the fuel injection timing slightly on some types of diesel engines, notably those with Bosch pumps. They depend on internal pressure to time the injection event. The external pump won't change it much, but can change it.

The problem with my Golf starving for fuel was a pinhole in the pickup tube where the rubber hose connected. Sliding the hose and clamping it over the pinhole fixed the issue.

The PO thought it was the pump "losing prime" which is indicative of a worn front seal. The seal costs about $3, and can be changed inside of an hour. Make sure you're aware of how to re-time the pump (same as replacing the timing belt).