Jake951

I was reading about use of WaterWetter and ran across a particular precautionary statement on http://www.dual-star.com/index2/Serv..._tech_info.htm. If you scroll down to the paragraph "Freezing Point Protection", there is a statement that "Even in summertime, the use of air-conditioning can blow freezing air through the heater and cause freezing of the heater core unless approximately 20% antifreeze is used." This sounds very far fetched to me. Has anyone ever heard of this happening or have concerns that it might in a GT3?

85Gold

If you have AC that will blow 32 degree cold air I want to know how to get that for my FL cars. Not something I would worry about.

Peter

KBS911

Use Penncool 2000. Better than WW.

tasman

Here in WI something which blows 32 degrees is considered a heater.

85Gold

Hey that's my line.

Peter

Jake951

Why is Penncool 2000 better? Couldn't find much useful info online.

KBS911

Well, because.....sorry...... 85Gold take it away......

LexVan

I thought the whole idea of using WW was not to use any coolant, just WW and distilled water?

85Gold

Pencool 2000 is a surfactant and water conditioner that prevents corrosion by raising the PH of the water as well. It is well known in the heavy equipment and diesel truck industry. WW is a surfactant which aids cooling but I don't trust it's corrosion preventative abilities compared with my experience with Nalcool now Pencool 2000 which I used for years in my previous life as a farmer. IMHO of course.

Peter

KBS911

I researched this topic to death before choosing the Penncool product....you started it 85 Gold. Can't find the charts and data right now, trust me I had them, but in short Pencool has surfacants and inhibitors as well as meeting ASTM standards that WW does not. It is used and recommended in both marine and fleet diesel applications and was/is supplied as a factory additive by GM in diesel engines. In short it is like water wetter on steroids and has proven it's efficacy in marine and fleet applications. I have used it in my 11 RS with distilled water to replace antifreeze and it's potential to harm me and others on the track in the event of a catastrophic coolant hose failure. It has performed flawlessly and I have experienced no ill effects or extreme temperatures in my car. It is quite simply a better product that exceeds the capability of WW.

Jake951

How about the "slipperiness" factor of Pencool 2000? That's the big reason for considering use of any of these products in a track-driven car.

85Gold

Not slippery at all. Just like water.

Damn KBS911 you really did your research. I got my basic info about Nalcool/Pencool 2000 in the 80's after I had to rebuild a Diesel engine due to cavitation pitting of the liners. Been running it ever since. If its good enough for a CAT it's good enough for me.

Peter

KBS911

LOL....you bet I did my research. You really sent me down the rabbit hole on this topic...damn near drove me crazy. I really felt that I needed to do something regarding the catastrophic coolant hose failure thing even though my 11 RS is suppose to have the upgraded glue. It seemed like the responsible thing to do. Bad enough to put myself in harms way, but not cool to ruin someone else's day. It's a cheap alternative to welded or pinned fittings. Found all kinds of posts about WW and brown slime issues and began to discover that the Pencool is simply a better engineered product. The fact that it meets ASTM standards versus WW meeting none was the clincher. BTW, Thanks for the tip! I feel much more comfortable on the track.

Jenner

As a current WW user I'd like to switch to Pencool 2000 the next time I flush and fill my cooling system, BUT Penncool doesn't seem nearly accessible as WW. How/where to order it non-bulk?

85Gold

You can sometimes find it at truck stops, heavy equipment dealers, marinas, and online. I don't remember exactly where I got my last batch online but it came in pints.

http://www.rivermarinesupply.com/xca...roductid=13502

Peter