Hi gentlemen,what brand of coolant fluid is suitable for the rx 330? thanks

 

Super Long Life Toyota Coolant.

 

Toyota coolant as kingofire mentioned, either the pink premixed 50% coolant/50% waqter or the pure 100% red coolant (that needs to be mixed with water). I also recommend a bottle of Redline WaterWetter to add to the coolant.

 

I second the Water Wetter in the coolant. Its whats in my coolant right now on my ES330.