Customer Ratings & Reviews

Great dose the job

Does what it says it does. In the winter it warms up faster and looking forward to running cooler in the summer. Recently added to my maintenance routine on all 3 of my vehicles because I've been so impressed with all AMSOIL's products I've tried.

have been using coolant boost in our Miata race car for a few seasons now with good results

Highly recommend after a radiator flush. This stuff will increase your heat in cold seasons. My Truck feels like a campfire.

Definitely makes ur truck warm up faster

I have a used 2017 Kia Sorento LX AWD that consumes oil. I did not research the vehicle deep enough before I made the purchase. I like the way the vehicle rides and it was well kept. I discovered the oil consumption issue and started doing research to treat the issue and I found the Amsoil product. I Chose it for the quicker engine warm-up and cool down results to help ease the stress on the oil. I also added Oil Stabilizer from another brand.

I have been using this in my tow vehicle for awhile, seems to help keep the temperature down. Would recommend.

Excellent

I just started using it. It seams like it helps warm up a little quicker.

Definitely noticed a differnece in how quickly our cars warm up. I think some people think it will get to full operating temperature in 30 seconds, which is ludacris. My truck get to operating tempature a few minutes quicker no doubt.

will report asap

Heats up fast. Cools down fast. The heat transfer rate is seriously a genuis level maneuver. Gobsmacked. Holy Toledo Batman!!!

Great stuff helps the engine build heat faster in the cold especially here in Ontario. My 07 6.0L Heats up a lot faster now and the coolant temp stays cooler when pulling heavy loads and at the same time helps the engine maintain its own heat even when idling in -20 degree Celsius. Great stuff recommend it for sure. I put this in my Transit and this has helped that van out lots also.

Outstanding product,

Que ce soit pour que le moteur se réchauffe plus vite ou qu'il se refroidissent mieux en période de remorquage, je peux compter sur ce petit plus qui facilite le contrôle de température du moteur!

see results on temp gauge

Really worked great

Really seems to help the cooling systems manage Oklahoma summer heat more efficiently. I add a bottle with every coolant change, and an occasional top off between services.

So far, so good! Summer will be the big test. Amsoil products have not let me down.

This works amazing have been using on lawn mower small engines and they have all been running better and cooler.