This is hands down the absolute best coolant on Planet Earth! I'm never going back to OEM coolant. This far exceeds my OEM coolant by a long shot. There is no comparison. This is just the absolute best. I'm using this in my 2016 SCION iM, 2013 RAV4 Limited, and 2016 Camry SE. It's HOAT just like OEM, but wayyyyy better. If you're thinking it over, think no more, and just buy it already. You won't regret it. I highly recommend this coolant.
After I pulled the original radiator from an 87 Olds Cutlass 442, which was leaking very badly, I dropped a new radiator in and filled the system with Amsoil Heavy-duty Antifreeze and some Amsoil Dominator. Replacing the radiator was necessary to stop the leak, but the AMSOIL products reduced the running temperature...a pleasant surprise.
I had to top off the cooling system in my 2014 Ram 3500 with 209K miles. I switched to Amsoil Heavy Duty when I had the cooling system flushed quite a few miles ago. As with all the lubrication needs on my Ram I trust Amsoil.
I live in Southeast Texas, I run this product in my diesel pickup and I to say it keeps my truck in excellent working condition, daily driving to towing I’m ready.
Good coolant. It's expensive but the good stuff always is. It depends on whether you want something that works and does what it says or something to just get by. If u have a nice car or 1 you care about and u want to keep it protected and running good this stuffs for u. If u need something to just get by then this stuff might be to high. But it is a great product.
I was skeptic about this product being different enough to notice. After flushing system and putting in this antifreeze, the temp on my truck dropped 15 degrees and this was on a 108 outside temp. I was shocked. if you have a bunch of miles on your vehicle, do not hesitate. I wish I would have done this a little earlier.
By 
KEN, 
a 
Verified Buyer 
from 
Carson City, NV 
on 
June 10, 2022
Have not had the time to install in yet. Will do so before winter hits. Shipping is always spot on. Better gather up on supplies now before you can't afford it.
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
4 star rating
Concentrate
By 
MATTHEW, 
a 
Verified Buyer 
on 
April 17, 2022
I wish they sold this in concentrated form. I flushed my system using distilled water and chemicals and then flushed the chemicals twice with distilled water before filling with AMSOIL coolant. There must have been some distilled water left in the block or heater core because after I was finished the mixture was only good to +10 degrees. Not a good thing in Minnesota but will suffice for the summer. I will have to drain in the fall and refill though to bring that mixture back where I need it to be for a Minnesota winter. If I had a jug of concentrate I wouldn’t have to drain as much and this problem could be easily rectified. Other than that I love the product.
First use. Water temps are a few degrees cooler especially when idling. Spills didn't leave any resudue. Superior performance and lasts forever. I'll never use anything else!
Can you send me a bottle of your Dominator boost, so I can beautify this review?
Bottom Line
Yes, I would recommend this to a friend.
Was this review helpful?
5 star rating
Great Product
By 
KURT, 
a 
Verified Buyer 
from 
So Cal 
on 
December 02, 2021
I have a Dodge 2500 diesel, Mopar's antifreeze is quite pricey. I have confidence in Amsoil products. All vehicles in this household use Amsoil oil, motor and trans!! Keep it up!
My truck runs 10-15 degrees cooler. Towed 5th wheel 2000 miles round trip passing through the Appalachian foothills. Temperature would rise while climbing but would quickly return to normal. I use the gear oil, diesel oil and diesel fuel treatment as well, no gauge to monitor temperature difference. The diesel fuel treatment improved my towing gpm. The coolant and diese fuel treatment is impressive no reason to doubt the benefit of the gear and engine oil.
Thank you for visiting www.amsoil.com. Certain parts of this website may not function with Internet Explorer. To continue shopping with us, please update your browser using one of the options below.