Prestone radiator additive?

[powayroger]

Prestone used to offer a radiator additive that had Teflon in. I wonder why it was taken off the market. I used to put it in my vehicles. Did they find it clogging the radiators?

Don’t know if it did any good, but I added it for the protection Prestone promised with the Teflon.

 

[69GTX]

The teflon (PTFE) in oil additives never really did what they advertised. Could it have been any different in the coolant?

 

[69GTX]

If it supposedly reduces surface tension, why not just use something like RL Water Wetter?

A thread from 2006

 

[Sayjac]

First, I've not heard of this Prestone AF additive. I do know that Fram which is currently part of the same company used to offer a Teflon/PTFE coated media oil filter called the Double Guard. That was during the PTFE Slick 50 craze, and was 'imo' a misguided attempt to cash in on that fad. It's now known that PTFE has no place in an internal combustion engine.

The Double Guard quietly went away and is something I would think that Fram would now rather be forgotten.

Now whether this referenced additive and thought process is in any way connected to the DG, I have no idea.

Disclaimer. This post is in no way intended to start a flame war, just presenting facts about what 'might' (or might not) have been a related product.

 

[JustinH]

I would say no, just use the proper mix of coolant and distilled water in your cooling system.

This is from the folks, who sell a kit to blast hose water into your cooling system as well.

 

[Yah-Tah-Hey]

Forget it.

 

[Bgallagher]

The only additive I would ever add would be the Bars Leaks or AC Delco tablets for a minor leak. I believe it is comprised of crushed walnuts to plug small leaks. Beyond that the only thing the cooling system needs is coolant and distilled.

 

[Pop_Rivit]

Just use the proper coolant and leave the snake oil additives to people who are foolish enough to use them.

 

[HerrStig]

Originally Posted By: Pop_Rivit
Just use the proper coolant and leave the snake oil additives to people who are foolish enough to use them.
+1

 

[slomo]

At room temp, teflon is a solid. Think sand. Also it has to be like 620F to adhere to metal. You might have to change your thermostat temp to make it work. LOL Haven't seen a 650F thermostat yet.

slomo