❄️ Stay cool, drive cooler — don’t let your engine miss out!
Rislone Hy-per Cool Super Coolant is a 16 oz. high-performance liquid additive designed to reduce engine temperatures by up to 25°F through advanced wetting agents. It offers maximum corrosion protection for all metals in cooling systems, including aluminum, and is compatible with all antifreeze types and colors. Ideal for a wide range of vehicles from classic cars to heavy-duty trucks, this USA-made coolant enhancer ensures efficient heat dissipation and long-lasting engine protection.
| Brand | Hy-Per Lube |
| Package Information | Bottle |
| Liquid Volume | 16 Fluid Ounces |
| Item Weight | 16 ounces |
| Recommended Uses For Product | Automotive |
| Specific Uses For Product | High-performance engines, Motorsports, Towing |
| Item Form | Liquid |
| Global Trade Identification Number | 00083136811009 |
| Manufacturer | Rislone |
| Unit Count | 16.0 Fluid Ounces |
| UPC | 083136811009 |
| Number of Items | 1 |
| Model | HPC100 |
| Item Weight | 1 pounds |
| Product Dimensions | 9.3 x 2.6 x 2.6 inches |
| Country of Origin | USA |
| Item model number | HPC100 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | HPC100 |
K**I
It works, keeps engines cooler.
My 1972 Oldsmobile 442 Convertible runs hot with the original 4 core radiator and belt driven fan. This keeps it from overheating. I also use this in my modern BMW cars for both the engine cooling and the air charge cooler for the turbos. Especially in my 750 with twin turbo "hot V" where the turbos are in the V of the block and get really hot.
J**R
works as advertised!!
good stuff! lowers temp and adds needed chemicals for old antifreeze
G**I
It actually works.
Well I had a bad radiator cap and ended up with a very dilute coolant (almost clear). I decided to use this as it prevents corrosion, claimed to lower operating temperature and lubricates the water pump plus I do not live in an area where freezing is a problem. After draining out an equal volume from the radiator and adding this I started the engine and ran it. I was surprised that the temperature was 20 degrees lower.
G**E
Works well!
I use this in my '67 SS Nova. I have had chronic overheating at idle in summer. After every trick in the book it's much better. I tried this and it made a solid difference of 5 degrees. I'll take it! 5 degrees doesn't sound like a lot, but it's the difference between an overheat and not. Got me down to a manageable idle temp. Best $ I've spent in a while.
N**G
A radiator coolant additive that reduces engine temps and corrosion protection!
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.
W**.
Great product!
Great product, I did see coolant temperature went down, and keeps it cool for longer when idling!
J**E
Ok product
Ok product have not seen the difference
G**.
I recommend.
Works well in my 2003 Yukon 5.3L Vortec. I put in a new radiator and added this with the new coolant and it runs an honest 5° below what it did with the old failed radiator and the same brand and type dexcool coolant.
Trustpilot
2 months ago
1 month ago
