[BlkGrnetRS]

My car used to take forever too. I bought some amsoil coolant boost and it made a huge difference. Plus I leave my heat on recirulate and fan speed on 1. I have plenty of heat after running the car for 10 mins

 

[BlkGrnetRS]

I interested yet skeptical that anything I could add to the coolant would help it warm up, without some sort of trade off in cooling capacity.

I can have heat in 10 minutes also, just need to head straight out onto the highway at 55mph+.

I'm not the only one who has seen an improvement in warm up time. There are many people here that would agree with me on this, the research is there.. sorry you feel skeptical. We all don't have the luxury of heading straight onto the highway