High mileage diesel oil?

[Abax25]

I have an older Diesel engine. Have replaced endless seals, still leaking slightly. Common with these motors. Is there such thing as a high mileage diesel oil with stuff for old seals? Can’t seem to find anything

 

[RooflessVW]

Pour in some Liqui Moly Motor Oil Saver.

 

[Abax25]

Pour in some Liqui Moly Motor Oil Saver.

I will give that a shot, and hope it doesn’t cause any issues.

 

[Oro_O]

This stuff has helped seals for me in a number of engines. They recommend 3oz/qt in a diesel application.

https://www.amazon.com/Lubegard-309...ywords=lubegard+biotech&qid=1623540208&sr=8-5

It is identical to the non-"heavy duty" flavor so you could just but the quart sized here and save a few dollars:

https://www.amazon.com/dp/B006HI8HYA/ref=twister_B016YBDULO?_encoding=UTF8&psc=1

It works.

 

[addyguy]

There was a Maxlife HDEO 15w40, don’t know if it is still made.

 

[userfriendly]

Let it leak. No big deal.

 

[bbslider001]

Wait wait, hold up. Which diesel do you have? A 7.3 PSD has an oil driven fuel system. Do NOT add any additives to the oil. No bueno. Let it leak. It's what they do.

 

[Zaedock]

There was a Maxlife HDEO 15w40, don’t know if it is still made.

I used it last year in my JD Tractor. Not sure when I bought the jug though. A quick forum search revealed it has been discontinued.

 

[m37charlie]

Find an oil high in esters, which tend to cause seals to swell slightly. Redline used a lot of esters. And so does Penrite in some of their products. Personal experience with the effect with Penrite Syn 75W90 gear oil.

 

[bullwinkle]

ATP AT-205 will help, 1 bottle per 6 quarts, it will stop slow, small leaks.

 

[dlundblad]

I’ve had good luck with Bars RMS stop leak on my truck.

 

[xgmad]

I have an older Diesel engine. Have replaced endless seals, still leaking slightly. Common with these motors. Is there such thing as a high mileage diesel oil with stuff for old seals? Can’t seem to find anything

Yes you could use seal conditioners like that liqui moly, but wouldn't it be just act like a bandaid?
Might aswell rebuild it man.

 

[RooflessVW]

Yes you could use seal conditioners like that liqui moly, but wouldn't it be just act like a bandaid?
Might aswell rebuild it man.

How is it a bandaid to condition a seal?

They're brittle. The additive helps them become pliable again.

 

[Abax25]

How is it a bandaid to condition a seal?

They're brittle. The additive helps them become pliable again.

The liqui moly actually worked. I’ve put about 125 miles, and it’s no longer leaving a puddle on the ground. It’s either the crank seal or a corner on the oil pan. More than likely, not the oil pan as it doesn’t have a gasket just RTV.
Shocked it’s working thus far

 

[Mont]

I will give that a shot, and hope it doesn’t cause any issues.

What about AT-205?

 

[Abax25]

Update.

I have over 1,000 miles on the fresh oil change with the liqui moly motor saver. It started to leak again, but it’s nothing like before. A few small drops.