(800) 853-2651
SHOP NOW

Adding engine oil to diesel fuel

D

DBraud

New User
Has anyone heard of adding engine oil to the low sulfur diesel fuel to combat the detrimental drying of seals and o-rings in the fuel system of pre 1990 Diesel engines?
 
I don't know much about diesel fuels. I should know more since I have a 1956 diesel tractor. So this question is one I will watch.
But something I heard several years ago on farm radio when they were talking about diesel fuels was "lubricity" . First time I had
ever heard that word, but instantly understood its meaning. I'm sure with in the mechanic world lubricity has been around a long
time I had just never heard it. gobble
 
I have noticed a difference when adding two stroke oil, one little bottle of cheapest I can find per 20 gallons.

I was a neigh sayer until I tried it, now I am sold.
 
I add some 2-stroke oil, about 2 ounces to 5 gallons, cheap insurance. Although most of what I burn has bio in it, and that had a lot of
lubricity. I just googled it, and MN has 20% bio in the summer months.
 
I have run older diesels (1960 930 Case) on straight ATF. Used to have a friend that owned a transmission shop. I would get drained waste ATF, triple filter it and run in my Case. Engine ran great, started easily with no more smoke than before.
 
I use some 2 cycle oil in my diesels and they run quieter and don't smoke any more than usual.
Richard in NW SC
 
(quoted from post at 17:10:56 01/28/21) My diesel shop said add ATF for the solvents and added lubricity. I have been adding a quart to each tractor a few times a year. Tom
Click to expand...

Heard about this trick from our neighbor who owns diesel trucks for 3 decades.
 

The only additive that modern fuel requires is IPA to remove moisture . Or some anti-gel if caught with a tank of #2 diesel in unexpected frigid weather .
 

"detrimental drying of seals and o-rings in the fuel system of pre 1990 Diesel engines"

LOL, do you REALLY believe that stuff?

If you do that is a definite plus for the snake oil salesmen, I guess!
 
ULSD has been around a long time now, it's not like every person with older diesel engines are using additives just to keep them alive. I'm not saying lubricity additives are harmful but are they needed? Putting "stuff" in the tank is just a guess or gamble on your part as to it's effectiveness but one guarantee is it's making your wallet lighter.

If any diesel engine needs more lubricity it would be the newer and more modern engines. They have tighter tolerances, a lot more power, faster engine speeds & turbos, 10+ times more fuel injection pressures.

Newer diesel engines are not built to tolerate lower lubricant fuels, it's not like they are using some magical alloys or certain substances that can tolerate lower lubricity. Modern engines only need ULSD because of their emissions equipment and tail pipe emissions compliance.
 
A little bottle of two stroke oil in
each tank is all you need. Yes you can
substitute motor oil but I wouldn't.
Back in the day the substitution for
chainsaws was twice as much as the two
stroke oil. It gave a lot more problems
to.

Of course you can trust big oil and the
government regulators to put all the
additives you need into the fuel
already. Your old diesel engine is a
priority after all.
 


Dbraud, this topic comes up here regularly. There are two distinct camps on this, and I am in the be safe rather than sorry side on this one. I don't use "snake oil", I add 2 ounces of two stroke oil per 5 gallons of fuel. Two stroke oil is formulated, of course, to burn cleanly.
 
I've wrote many times about the sticky pump on my JD4320. Anyway since 2005 I've been adding 2cyl oil to the tank and it cured the pump problem and I've had no other issues since. I now add a few gallons of walmart 2cyl oil to the main farm tank
 

Here is recipe to the best additive and is guarantied to solve any ill in man or machine .


mvphoto69090.jpg
 
Add whatever you want if it makes you sleep better at night.

In my mind, if the ULSD was so BAD, where are all the ruined engines? Where is the class action lawsuit? Surely if it was the travesty that some make it out to be, the stories would be overwhelming these forums, even now 14 ish years later.

You constantly hear of people putting various random lubrication products into their diesel fuel in random amounts, and claiming they can tell a difference, or it's doing some good.

You NEVER EVER hear of anyone saying their engine was ruined because they didn't put anything in their fuel.
 
DBraud,

Injector spaying tips holes measure in the 1000'S as in a few thousands.
The pressures are also high at the tip. Snake oil, wife's tales, hearsay. anectoal tales?

Just put the proper fuel in it!

Guido.
 

And if you can't figure out what to add then the old standby is Coors Light.

Not in the engine, in your body.
 
(quoted from post at 20:53:06 01/29/21)
And if you can't figure out what to add then the old standby is Coors Light.

Not in the engine, in your body.
Click to expand...

US issue Coors Light is like making love in a canoe .
 
We had an 8410t that would Idle like a gas engine with a big
cam I dumped one gallon of 15w40 in the fuel tank after one
big 12 hour day the rough idle was gone and never did come
back the rest of the time we had the tractor .
cvphoto73393.png
 
You must log in or register to reply here.

Similar threads

Hendrik
Mothballing diesel car
Replies
7
Views
464
MarkB_MI
MarkB_MI
Geo-TH,In
Howes diesel treatment?
2
Replies
34
Views
1K
wilson ind
W
W
Diesel Engine Oil
Replies
11
Views
937
JLMac
JLMac
C
John Deere 730 Diesel Pony 6v to 12 v conversion wiring diagram.
Replies
10
Views
530
Chuck430C
C
F
Gravity feed diesel tank recommendations
Replies
17
Views
666
Destroked 450
Destroked 450
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top