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Your cart is empty.Introducing DEI Radiator Relief Coolant Additive Radiator Relief helps keep your engine cooler by lowering temperatures by up to 30°F. It’s designed to prevent overheating and protect against corrosion from electrolytic and chemical sources. This additive works with all types of coolant and antifreeze mixtures and is safe for use with any radiator material, including cast iron, copper, brass, and aluminum. It includes an anti-foaming agent and corrosion inhibitor to balance acidic effects and reduce mineral deposits. Radiator Relief enhances your radiator’s performance by improving heat transfer, which reduces engine wear during intense use. It also maintains stable pH levels to prevent core damage. ● Reduces engine temperatures by up to 30°F. ● Anti-Foaming Agent ● Corrosion Protection ● Reduces Scale Buildup ● Works with all antifreeze types. ● Recommended dosage is 1 oz per quart of coolant. About Design Engineering: Design Engineering Inc. is a proud US manufacturer with 30 years of expertise in innovative heat and sound control products. DEI’s family of products ensures that our customers receive the best in heat management and acoustic control. At DEI, we are committed to delivering quality and excellence across all sectors.
Gina
Reviewed in the United States on September 5, 2024
fast delivery. Used as specified. Seems to be working as stated
عبدالرحمن الحربي
Reviewed in Saudi Arabia on August 14, 2024
جرّبته وجربه vp cooling كلها نفس الشي وخسارة فلوس عل الفاضي لا انصح
LILO
Reviewed in the United States on April 8, 2024
I’ve used on a couple cars and it helped out in summer well…good value good price
RG
Reviewed in the United States on August 18, 2023
Traveling in Arizona in 115+ heat, I wanted a little extra cooling capability. When parked with engine running for AC, extra capability is great. It kept engine temp at 197 degrees while idling for 45 minutes in 115 degree air temp.
O produto não foi entregue!
Reviewed in Brazil on July 25, 2023
chill
Eric
Reviewed in the United States on August 17, 2022
Texas heat forced me to try this out. I flushed my system and did a 90/10 mix and the results are great. It keeps my truck running cool no matter how hard I push her.
Mark Clark
Reviewed in the United States on October 5, 2022
Dumped this in my Humvee pressurized coolant reservoir and it didn't lower temps at all. It has a hydraulic fan that turns on like clockwork at a specific point in my commute, so even a 5* drop in temp would be noticeable. Zero change after driving for a week. It might be better if I ran just this with distilled water. Also, smells like urine.
Gregory G. Maze
Reviewed in the United States on June 2, 2019
I liked what I read about it but the car I have does not have a temperature gauge! So how can I really tell? I have a GM Northstar V8 and it gets hot!!
Robert P. Bowden
Reviewed in the United States on July 20, 2018
I have a BMW… It’s about 10 years old and like a lot of other BMWs it has cooling issues… I live in LA and usually the summer time is the only time it’s an issue… Lots of idling because of traffic…It’s been hot lately and so I thought I would give this a try because my mechanic has tried a bunch of things and the temp gauge will sometimes “creep up.” I drove it today and it was in the 80s and zero creeping problem ....for the first time in a while (with it being that warm) iEnough said! (I run straight distilled in the summer and this has anti corrosion additives. Set!!
Guillaume
Reviewed in Canada on May 12, 2016
Good
R. R, Jones
Reviewed in the United States on September 6, 2013
this one did good also, between flush and additive, I think the engine temp is down.This one says to add four more silly rules !!
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