Car Questions

Would At-205 work i...
 
Notifications
Clear all

Would At-205 work inside a cooling system (coolant resovoir)?

  

0
Topic starter

I have a 2012 Jeep Grand Cheerokee 3.6L Pentastar and believe the oil cooler will have leaking issues in the future (either oil or coolant leakage) based on https://www.youtube.com/watch?v=4-KSBYiPopc&ab_channel=DeadDodgeGarage. Car only has 75K miles but 11 years old. Engine has only seen synthethic oil and coolant has been flushed once in 2020 with OEM spec coolant.

Would it be possible to add AT-205 inside the coolant resovoir to prolong the oil cooler rubber seals to mitigate leakage issues?

I will add AT-205 into engine oil compartment but unsure AT-205 will be effective or viable in the coolant. Thanks. -Vouth


6 Answers
2

ATP do not say it works in coolant

 

https://atpautomotive.com/re-seal

 

Posted by: @vouthanack

to prolong the oil cooler rubber seals

it's a stop-leak product. Not preventive maintenance


2
Posted by: @vouthanack

I kind of wish they would put this on their website as they mention not to use this product on braking systems, yet it is fine on power steering systems.

If you look at the systems that ATP is claimed to work in the common denominator is that they all use oil of some type.


2
Posted by: @vouthanack

I kind of wish they would put this on their website

Why? I think they spelled out pretty clearly what it's for on the website:

Compatible with conventional and synthetic oils, ATF, gear oil, power steering fluids and hydraulic oil

nowhere is coolant listed, or windshield washer fluid, or tires ....

If a product doesn't specify an application, you can safely assume it's not intended for it.

My car soap label doesn't specifically say "do not use to clean the interior of your engine". Can you imagine if they had to list every single thing you shouldn't do with it?

 

 
Posted by: @vouthanack

hey mention not to use this product on braking systems, yet it is fine on power steering systems.

Sounds like it only works in oils. Brake fluid is glycol (same as antifreeze). power steering fluid is an oil


Thanks for the technical advice @imperator, now that I've started a dialogue with the producer (ATP), and we've all concluded that AT-205 only works on certains systems (oil based), it makes me ask... wouldn't it make sense for someone in the world to invent a product compatible with non-oil based systems that would have the same re-seal functions as AT-205? Of course, this might not be possible or even practical, but might help seal a leak in the brake/coolant system or other non-oil systems. But, I could also imagine the other risks involved...

My end goal was to avoid replacing parts since parts and labor (oil cooler + labor is over $1K) are expensive, if the seals can somehow be restored.

I've concluded that I'll simply have to replace the pentastar oil cooler at this point since it is made of plastic which will crack over time and the o-rings will fail one day, unless you, or anyone else in the forum have another solution (not AT-205 of course).


1
Posted by: @vouthanack

Thanks @imperator, I also received an official answer from the manufacterer. ATP Automotive said "AT-205 can not be used in cooling systems, it does not mix with antifreeze."

I kind of wish they would put this on their website as they mention not to use this product on braking systems, yet it is fine on power steering systems.

I think i'll simply have to replace the oil cooler when when i experence an oil leak or coolant leak coming from the oil cooler area on the pentastar engine... Thanks!

AT-205 Reseal is only a band-aid. To truly fix anything, whatever's leaking needs to be replaced. 

 

Put some coolant based UV dye in the cooling system, drive it around for an hour or so, and use some funky glasses that were provided with the kit to look around underneath the car. If it's not that, check for oil, using another kit that's intended for oil. 


0
Topic starter

Thanks @imperator, I also received an official answer from the manufacterer. ATP Automotive said "AT-205 can not be used in cooling systems, it does not mix with antifreeze."

I kind of wish they would put this on their website as they mention not to use this product on braking systems, yet it is fine on power steering systems.

I think i'll simply have to replace the oil cooler when when i experence an oil leak or coolant leak coming from the oil cooler area on the pentastar engine... Thanks!


0
Posted by: @vouthanack

I've concluded that I'll simply have to replace the pentastar oil cooler

This is the only reliable repair you can do, if you plan on keeping the car.

Mechanic in a bottle is usually only good enough to get you home.


Share: