Is a tank of Techron or similar cleaner more effective if you are going to be doing prolonged highway driving? Or is it better with shorter trips with stop and go? Getting ready to take a trip and can't decide to do it before or during the trip.
Pour it in, add a few gallons to mix it up, and then find a nice overpass with a cloverleaf and make double figure-eights with WOT on every merge lane for about 30 mins straight…