Thank you for sharing this information with me!I have used the GM White, Ford Blue, Ford Red and the Variable unit over the years in multiple vehicles. Here in Texas, I find the Ford Red or Variable to work the best. Ford Red is 0.062 where the GM White is 0.071. The Ford Blue is in the middle at 0.067". I recently put a variable in the Van, it cools quick, pressures are great, and it blows fingertip numbingly cold.