I was reading about puting ATF into your fuel tank in order to lube and clean your injectors. How much do you put in the tank and when should you add it? Full tank, empty tank...

 

https://www.ford-trucks.com/forums/9...says-ford.html

 

hope this helps

 

No it doesnt. If you look at that thread I was the last to ask a question and no one answered

 

read post #11 from joe

 

I just put 2 qts in my full tank, but I was always told, the more the merrier.

 

i ran 4qts. in fuel bowl like joe said. and i did noticethat it idles better and is a bit more responsive on the go pedal

 

I have run 100% ATF and hydraulic oil for thousands of miles W/O any noticable harm or smoke or lack of power. Diesels are oil burning engines and will burn any oil light enough to be pumped through the tubing. Later models, '03 and later, have a much more sophisticated fuel system and probably would suffer some damage to the system if used in large amounts.
I had an '86 F350 diesel that had thousands of miles on ATF on it too. Finally sold it with 486,000 miles. Thats when I bought my '02 F350 PSD.

 

100% atf and hydro fluid?
Even the cheap hydraulic fluid that is spec'd for my tractor is 10 dollars a gallon. Cheap ATF is at least that. Why would you spend so much?

Also since when does the filter housing hod 4 quarts of ATF? Mine barely does half a quart when I change the filter.

I think you guys are spending too much money.
Injector cleaner like power service is way better for it and cost's less when used per the instructions. You don't get a cetane boost out of ATF either. Or gel protection.
People have been using atf when changing fuel filters for a long time, me included but I think what most of you are doing is overkill and way too expensive.

 

i did be cause iwas told i had dirty injector and no i does not hold 4qts. i would fill it then run it and repeat

 

Well RRanch, what I didn't say was I repair air compressors for a living and many of them use ATF for lubricat/coolant. I would use the drained air compressor oil as a fuel. Also saves me the expense of disposing of the old oil.
I have even ued synthetic compressor oil in my truck.
I also have a pre filter on my fuel system to filter the used oil prior to it going to my fuel pump.

 

That's good that you have a filter on it.
If you want my advice, I would also heat the oil but make sure it is regulated not to go near it's flashpoint. If you can heat it and just settle it in a tank it will get out a lot more crap than a filter would. I am a retired navy steam engineer and know a little bit about oils and purifying them. You wouldn't believe the crap that came out of the bottom of our settling tanks after just one batch of oil went through it from the reduction gear. It's a closed system always with a disc type purifier running on it and it never should get dirty but it sure does.

That dirty injector excuse is too commonly used by mechanics that don't have a clue what they are talking about. Like I've said here several times before, I've only seen one truly dirty injector in all my years at Ford and I've worked there since the first year of the powerstroke engine as a diesel mechanic till about 5 years ago. Every other suspected dirty injector that I diagnosed was something else.
The one dirty one I replaced was in a truck owned by a stupid kid that thought he could get more fuel through it running without a fuel filter. I can't believe he only trashed one.
Also if an injector is truly dirty inside, It's trashed. Anything getting past the filter big enough to plug the nozzle is also going to wear like sand paper on the innards of the injector.