Amazing MPG gains... Magic fuel, or ???
I have driven 6975 miles since setting out on this cross-country trip back in early October, and I have recorded every single mile and each gallon of diesel fuel along the way (22 tankfulls so far) in...
Forum Discussion
FreebirdFlies wrote:
The fuel industry recommends NOT topping off the GASOLINE tanks of modern vehicles due to too high a fuel level possibly damaging the vehicles sensor and/or emissions componts. Supposedly this practice can lead to costing money to repair the vehicle.
Vehicles of last 20 years do have charcoal canister that cleans the fumes that might come from over-pressurized tank.
Topping off the tank might flood charcoal and destroy it.
But I always give the pump nozzle 3-4 clicks before I consider it filled up and never had to repair anything.
