- Brand: Hy-Per Lube
- Package Information: Bottle
- Liquid Volume: 16 Fluid Ounces
- Item Weight: 16 Ounces
- Recommended Uses For Product: Coolant
- Reduces Engine Cylinder Heat Temperatures
- Allows Safe Advancement of Ignition Timing Resulting in More Horsepower
- Prevents Overheating in High Performance and High Load Engines
- Complete Protection from Rust, Corrosion and Electrolysis
- Compatible With All Types of Antifreeze, does not contain ethylene glycol






















Britton Posey –
My Volvo C30 has quite a few mods that keep it running warm. This product definitely helped cool things down a bit and the coolant seems to be flowing throughout the system a little better. I would use again…
Scotty J –
It gets a little hot in the summer in northern Indiana and the humidity doesn’t help. I recently installed a 383 stroker in my 69 camaro with aluminum heads. Even with a big champion radiator with dual electric cooling fans I was not happy with the temps I would see on some hot days. I have seen products like this from other sellers and thought I would give this one a try. I drained a little coolant out of my system and poured a whole bottle in my system and ran it to tell and topped off with more 50/50 coolant mix. I took the car out on a pretty hot day and immediately noticed a good 10-15 degree drop in temps this stuff works great! I will be using it every coolant change on every classic car from now on.
TZ –
This product is the real thing. My cast iron vulcan engine heats up quickly on hot days ( like all engines lol ) Even after flushing with Irontite ( white bottle with green lettering; best coolant flush period ) it still will get to 215 before fans come on. I decided to try a coolant addictive and after searching on Amazon found this product. I added 2 bottles of hy-per lube, Zerex G 05 coolant and distilled water and my temps max at 204. It doesn’t sound like much but it helps. The one thing I did notice is how fast the temps drop when the fan comes on compared to no hy-per lube. It would drop to 188 compared to 195 before the fans cut off. If the ac is on the temps will stay around 188/190 compared to 199 without in 98 to 100 plus degree weather. Not mind blowing results but every degree drop counts. I did a coolant flush before using this product along with distilled water, Zerex G 05 coolant. I also used 2 full bottles of this stuff because I could. I do recommend this product to anyone who wants to lower their engine temps.
Cheryl Ann –
i think it may drop the temps by a degree… since it lists to add another bottle yearly…its NOT worth the trouble because you have to drain antifreeze
Willard W. –
It lowered the temperature like they said it would.
Amazon Customer –
Don’t know of effective properties yet. So farSeems to help but weather has cooled down.
steelxhorse –
Seems to make the engine run cooler
kyle was here –
Short term : definitely worksOur minivan has consistently ran hot , first 2 days we didn’t notice nothing major 1-2 degrees , it does take time to cycle throughAfter a full , whoa! The temperature according to inside van gauge dropped 12-14 degrees after car is warm. Not the temperature from startup but temps after driving for some time.Has been holding up for a couple months now, long term longevity is key. Will update after more time