Driving 75mph does it help to run the fans ? Or does it impeed airflow? I was coming from the desert and it was 95*out. My temp guage read 190 @75mph no fans. I use them when driving 30mph. any help?

 

I don't think the fans would help at all at 75 MPH. Going that fast on the interstate usually keeps my car nice and cold.

 

Going 75mph... the airdam will force a lot of air to your radiator, which will help cool off your coolant/water.

You shouldn't need to run the fans at this speed, even in hot weather, unless you have something restricting airflow to the airdam area (I had this once).

 

190 is not a problem. Our engines were designed to run at high temperatures like that. It is more eficient, and keeps emisions down.