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diesel fuel and atf

A

Anonymous-0

Well-known Member
buddy of mine just got the bill today for work done on 5010 injection pump and injectors. $2800 dollars; the mechanic said that todays diesel fuel does not provide enough lubrication and should add atf or two cycle engine oil every time you fill tank. is this a good idea? comments please pro or con thanks
 
2-stroke would be good, just dump in some of the cheap stuff. It"ll make it smoke again. ATF has "friction modifiers" in it that make it "stickier" when under high pressure, such as in your injection pump and injectors, and can actually be a little abrasive.

Marvel Mystery Oil is bad for the injection system. It reduces fuel lubricity. Most of your additives make less of a change in fuel lubricity than 2-stroke and do it for a lot more money.

I usually run a pint per fill-up in my Cummins, 30 gallon tank, seems to work well. I dumped in a quart one time, and was still blowing smoke at 75 pulling a long grade. Oops.
 
Yes,Add oil! Today's modern ultralow sulfur fuel is too 'dry'.it needs to be supplemented.ATF;two stroke oil;Maarvel Mystery oil;or a whole raft of supplements are acceptable.Lucas,Power Service;Conklin 'Diesel Plus' are just a few.Listen to the pump guy.
 
T,I didn't know these things about MMO or ATF...Lots of guys seem to use them,always thought they were OK.Tell me more....Thanks,Steve
 
I run STIEL (spell)two cycle oil,six ounce per fill up lower thirties gallons.engine is quitter,dont think it helped milage. I have 95 FORD 7.3
 
i run in my 04 dodge 3500 Lucas Fuel Treatment-8oz , Marvel Mystery Oil-16oz in every tank and about every fourth tank i put two bottles of heet and sometimes two cycle oil seems to have a little more get up and go with two cycle oil
 
I remember when they came out with the low sulfur diesel fuel. We had about a half dozen
roosa- master injection pumps where I worked and all of them had to be rebuilt because of the fuel change. Now with the new engines most of the injectors are oil activated instead of using injection pumps. Now they're all electric over oil pressure.
Hi-pressure fuel pumps are a thing of the past now they use Hi-pressure oil pumps to push the injector plungers down. These Hi-Pressure oil pumps are separated from the engine oil pumps but both use the engine oil. They are now using Hi-Pressure fuel pumps to activate the injectors. Pressures are as high as 12,000 lbs. The pressure has to be high to pop the injectors at the correct time and the faster the engine runs there is less time between pops.
 
Back in the '70's a fella used to stop in to fuel up the filling station every Sunday that I worked at as a kid in his car hauler. I don't remember if he had 50 or 100 gallon tanks is was so long ago, but he always bought two quarts of ATF, one per tank on each side and added it religiously. As a stupid inquisitive kid I asked him why. Nice fella, told me that it cleaned and lubricated his injectors. He drove that tractor for years and never once did he not do it any time that he pulled in while I was working the pump islands.

With Howes or Power Source in every tank on the pickups and tractors all year around, I never have, but thanks for the reminder. I need to give it a try. What can it hurt?

Mark
 
Here's what I run in my 02 Dodge Cummins. I still run a 14 ounce bottle of 2 cycle oil mixed with the JD stuff. If JD makes and recommends it for all their diesel engines I figure it must be good to use. Engine sure runs quieter after I started using the mix. $12 at Wally World for 1 gal of the 2 cycle oil.
JD fuel additive
 
Are you working with some large stationary engines that use hydraulically actuated injectors?
 
Pressures as high as 12,000 psi....sorry, but your a bit behind. I read an article recently that said some of the common rail systems nowdays are running in excess of 30,000 psi, and they are shooting for higher. Heck one of the engine mfgs brags in their adds that their engines have injection pressures that high.

In the article I was reading it sayd that it's to the point now that they are making the pinholes in the injector nozzels so small a drop of water, at 30,000 psi, will blow the tip off of the injector before it will pass through it.

Too it said that in a time where fuel systems require the cleanest fuel possible, the fuel being put on the market is as bad, or worse than it's ever been, so filtration is more important now than ever.
 
The fine for running anything RED in a on road truck will pay for a several injection pumps. Add anything you want to your tanks, but nothing with RED in it.
 
(quoted from post at 22:22:55 09/02/13) around here we have red diesel available. is this a good alternative to additives?
Click to expand...

It's all the same, just dyed red. New farm tractors now have to run ULSD too.

Donovan from Wisconsin
 
Some will always think that some snake oil needs to be used and the vast majority just uses what comes out of the tank and get along just fine.
 
I add one quart of Lucas semi-syn 2-Cycle oil to each 50 gallon barrel of diesel for my tractors. That gives a 200:1 mix. I also add one quart of APS diesel additive per 50 gallon, which provides increased cetane, cleans, removes water, etc. Tractors do not smoke and I have never had rebuilds of pumps or injectors in 14 years.
Tom
 
As far as I'm concerned... the best money you can spend on prevention on diesel engines... is FILTERS. Get the damn water out of the system and you have a lot less trouble. When I look at an engine and see a rusted fuel filter on it I've got to wonder how long it's been since it was changed.... and how much water and crap is accumulated in the separator. You leave it go long enough... the filter deteriorates... you get water in the pump... then you have pump and injector problems.
I've yet to see ~any~ pump problems on my gear let alone any related to bad fuel. I guess we just have better fuel here...

I also see lots of people around who never change filters buy use this or that wonderful conditioner... and I wonder when that will come home to roost.

Rod
 

I had a Cummins 400 Big Cam for awhile and ran through at least 100 gallons of diesel a day in a rough environment. I always added a quart of ATF to a 100 gallons (had 2 100 gallon tanks. Never had an engine problem and the engine had been rebuilt somewhere along the line with over 1 million total miles to it's credit.

Here's what's pitiful. I was paying $1 a gallon with road tax and they upped the price to $1.10. I felt like someone just reached in my pocket and pulled out a $10 bill without asking. Thinking about today's prices, I'd have really been bent out of shape.

Mark
 
If'n your engine is a quitter, I think you oughta call a mechanic to look at it...'cause it probably shouldn't be quittin' when you need it.
 
Rod in NS has the situation understood. Same as those people who recognized Marvel Mystery Oil as the snake oil it is.
No need for extra lubricant with today"s ULS diesel. The first months of LS and ULS did cause injection pump problems until the refineries starting adding lube.
If you really want to add lubricant.Add 1or 2 % soybean oil biodiesel.
Marvel Mystery Snake Oil is only 70-80% naphtha gasoline, 20-30% baby oil and 1% Clorinated hydrocarbons.
Oh yeah, gotta add that stuff to the fuel tank. Maybe even the crankcase too. Really make her run good.
 
(quoted from post at 17:25:38 09/02/13) buddy of mine just got the bill today for work done on 5010 injection pump and injectors. $2800 dollars; the mechanic said that todays diesel fuel does not provide enough lubrication and should add atf or two cycle engine oil every time you fill tank. is this a good idea? comments please pro or con thanks
Click to expand...

There are millions of diesel engines running around the world and they have no issue with todays fuel. It is all additsed at the refinery. Lubricity issues seem to be mostly on this web site. It is amazing to hear the "he said she said stuff".
 
Hello bob,

If you are referring to the 30.000psi pressure, DDEC 4 cycle engines have that kind of injection pressure, (28.000 PSI) and mechanically actuated electronically controlled fuel injectors,
Guido.
 
I used to use bio. It works okay in the summer but will settle out. Local Hucks is not used in the winter because of their quality. Bio screwed up the tank in my 435 and I think I blew the head gasket trying to get it started. I dump stuff in my 6.7 and semi because of the low sulfer.
 
The Hydraulic-Electric Unit Injector, or HEUI, which uses high pressure oil to increase injection pressure within the injector itself.

Then there's the Piezo injectors. They have only been around a short time, it's what the common-rail Cummins uses. It reacts fast enough that they open the injector up to 7 times per ignition event. That's how they got them so quiet, they pre-inject a little fuel, so there's already fire in the hole when the main shot of fuel hits.

The early Duramax is supposed to run 4500PSI+ in the fuel rails at idle. The more pressure, the finer the spray, and the cleaner it burns.
 
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