ATF in the fuel for clean injectors?

[Birddog Pilot]

I have a friend who used to be a long-haul trucker and he was telling me that once a year he would add ½ quart of ATF per 100 gallons of diesel fuel to keep the injectors clean. I asked whether he ever used Marvel Mystery Oil and he said that too would work, but ATF was cheaper.

Has anyone had any experience using either with the fuel to keep the Cummins injectors clean? Many of my airplane friends use it both in their fuel and oil and swear by it as a cure-all for nearly everything. However, I won’t admit to using it here on the Forum, big brother, the FAA, might be listening in.

[Midniteoyl]

Not sure about airplane use (tsk tsk), but I always thought the ATF was used to up mileage? I can see a serious carbon build-up if used in large amounts, but I dont see the 1/2qt to 100gals doing anything.

Also, it may cause you some grief when the gov sticks your tank and asks why it's red. They may not accept your story, and you'll have to deal with a bunch of fuel testing, paperwork, and perhaps a court appearance.

[kraig]

I recently attended a fleet manager's forum on diesel fuel. There were 5 different speakers and they all agreed you should't use ATF in diesel engines. We do have mandatory bio diesel in all of OR and they all had different products.

In 2007 when the whole US got USLD diesel, with 15ppm, you get a lot less lubrication. There are several states going to bio diesel and that causes other problems.

Now days we probably need more lubrication. There are several products available. The product I am using is Diesel Kleene+ Cetane Boost. A 32 oz bottle treats 100 gallons is about $8 and is readily available. Web site www. powerservice.com

[Wayne R]

I also use Deisel Kleene, I add a quart bottle about every other tank. I always make sure I use it prior to parking for extended periods.