Hyper Cool from Rislone is a radiator additive that has a lot of lofty claims on cooling. I tested this product out last year on an old wore out small block 350 and got no results. This year I am testing it out on a freshly built Big Block 455 with an all new cooling system, will I get any results this time?

#hypercool #radiator #engine #radiators

Check out my channel for more content on DIY as well as the restoration of my 1972 Buick 455.    • Buick Restoration  

Follow the progress of this Buick and get some behind the scenes content on Instagram @72GS455
https://www.instagram.com/72gs455/ree...

0:00 Intro
3:15 Engine Temp Test With Just Water
4:48 Adding Rislone Hyper Cool To Radiator
8:48 Engine Temp Test with Rislone Hyper Cool
11:42 Final Thoughts on Cooling
13:58 Follow me @72GS455