Owner reviews for antifreeze

I use Castrol Syntilo 9828 coolant to machine carbon composites. It\u2019s certified for Boeing and Bombardier composite fiber parts.

I use prestones all weather,Great stuff

I also have a 2018 Sport. Just changed mine at 35k miles. It had orange in it but the replacement is Motorcraft yellow. I highly recommend you do not use anything else. The motorcraft coolant is better than the ones you will find in stores. I used the 50/50 mix and was able to get the orange out with 4 gallons of repeated drain and fill. The orange and yellow are compatible but the new yellow has more corrosion inhibitors.

I run the Peak Final Charge Global red coolant. Less corrosive than the green stuff, and I haven’t had any issues running it.

i use peak 50/50 Red stuff formulated for toyota lexus and scion

Not an LS specifically but I had good luck with the PEAK 50/50 pre-diluted mix from Autozone.

I used peak when I changed my rad, no issues so far

I’ve used Pentosin Pentofrost NF, it’s the same as OEM

Mods: None, staying showroom stock. TCL Buyers Guide Negatives / future ownership issues: A) Valley Plate coolant leak: Look for pink crystals (dried coolant) underside of engine near where transmission meets up w engine. Also check upper radiator hose where it connects to radiator. Workaround: 50k/5 year coolant maintenance.

My 2017 CX-9 and it has a coolant leak from the back of the block by the manifold and the shop I took it to said to take it to a dealer.