Red Line 80204 Water Wetter Coolant Additive - 12 Ounce Bottle

Michael Miller: Great product, easy to use and got here early.

United States on Sep 21, 2023

Froodies Hoodies: Added to my old Sprinter van for summer because everyone swears by this stuff. I wasn't having any problem before. Preventative measure for me.

United States on Sep 09, 2023

Great product: Car does run cooler now

United States on Sep 09, 2023

Rusty S.: I was skeptical but firgured it was worth a shot and to my surprise this stuff works. I don't know how it does what it does but it dropped my cruising Temps down to 177 when they were previously 190 range. It has new radiator and 50/50 mix of dex cool that's only a couple weeks old. The only change I made was adding this stuff. Made a believer out of me. If u want to shave a few degrees it's definitely worth adding.

United States on Aug 13, 2023

Kristy: Works great!

United States on Aug 13, 2023

Buck: works good use it in my model a ford

Canada on Jul 20, 2023

Werner Ilsen BE: prima snelle service van leverancier

Germany on Jul 05, 2023

Just the two of us: Lowered temperature by 5 degrees

United Kingdom on Jul 03, 2023

michael: It does what it says on the bottle.

United Kingdom on Feb 19, 2023

Have you seen the Jack-in-the-Green?: Redline say this is supposed to decrease the chance of corrosion and improve the thermal conductivity of your engine coolant, thereby transferring heat away from your engine block more effectively. You'd probably not notice a decrease in your engine temperature unless you were already suffering from overheating problems, as most vehicles have a thermostat in the block that gradually opens as the engine reaches its designed operating temperature, directing all the water around the radiator instead of keeping it looping round the block. Thus, any improvement seen by this product would be invisible, as you'd just find the thermostat not needing to open as fully. The benefit would be in protecting your engine, added piece of mind, and elimination of any hot-spots that might encourage knocking and pinking.

I went on holiday last summer, which would have involved a 500-mile round-trip even if I didn't do any driving at all when we got down to our destination. Seeing as my car had just turned 35, I figured it wouldn't hurt to try this stuff - especially as she's been knocking and pinking over the past year whenever fed standard unleaded, even though I've always used the same...

United Kingdom on May 31, 2018