Hy-Per Lube HPC100-3PK High Performance Super Coolant - 16 oz, (Pack of 3)

Sinceramente no confiaba en lo que había leído de este producto.... pero me he tenido que callar porque la temperatura de mi carro bajó en cuanto se lo puse.

Great product, I did see coolant temperature went down, and keeps it cool for longer when idling!

Helps keep my hot rod cooler

Product does seem to keep engine a few degrees cooler, i use on my intercooler and does keep that much cooler than using 50/50 antifreeze now i just use this.

I use this super coolant additive for both of my vehicles and it works as expected. I would use it again. Check with your manufacturer first to see if its compatible with your vehicles.

I have a 2001 Prowler that ran hot. Added this and 8° cooler. Nice!!!

My old 95 GMC with the Vortec 4.3 V6 seemed like it was running too warm at around 205° F. Not really over heating, but I like it too be around 195°. Flushed out the radiator with a chemical flush, refilled it with Prestone and added the entire bottle of Rislone Hyper Cool. I see no difference. It still runs at the same 205° as before. Maybe the gauge is just not accurate any more. Or maybe this stuff doesn't work.

When I flushed my coolant system. I had replaced the coolant with two bottles and the rest with distilled water. My engines temps in my 6.5 Diesel stay right at 180. Freaking perfect. I live in PHX, AZ so I never have to worry about it freezing. But our hot summers at 120 degrees leave me worried free knowing I have the best coolant in my truck.