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Your cart is empty.40 below radiator treatment reduces coolant temperature up to 40 degrees. Originally developed for NASCAR racing conditions. 32 oz. Can.
TekGeek
Reviewed in the United States on December 12, 2023
It works ok, I think if you flushed your radiator completely and filled it half and half it would probably work.. I didn’t see much of a drop in my high compression engine. Just a few degrees…
Rivi
Reviewed in the United States on September 21, 2021
Lowered operating temp by 10 degrees
Customer
Reviewed in the United States on July 15, 2021
Good product
Don Buczkowski
Reviewed in the United States on June 26, 2020
So far so good. Need to run on highway to see if it makes a huge difference. But in 90degree weather my blown 496 BBC stayed below 205 degrees in traffic. It’s normally 210-220 easy.
April Carroll
Reviewed in the United States on August 21, 2019
Worked great to keep our race car cooler
Tre
Reviewed in the United States on December 9, 2019
The best antifreeze addictive period
Marcus T
Reviewed in the United States on September 14, 2018
This made Zero difference in my radiator water temp. I run a mail vehicle and at 85 deg and 85 % humidity the car overheats at a certain spot in the route. This product changed nothing.
Vettes Rule
Reviewed in the United States on August 11, 2017
This product worked as advertised on my 2004 Corvette Z06. I saw water temperature reduction of 20+ degrees on the autocross course.
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