Daily gas station car wash will be the best way to get the car paint dull. The coating lacquer gets micro scratches from the brushes if these are not properly cleaned or soft enough. What’s your guess where dirt and sand on the vehicle cleaned before yours end? Some is washed off, some is scrubbed off and some sticks to the brushes.

You want a dull looking car? Go for a cheap wash at a gas station. If someone needs to have the car cleaned on a daily basis, e/g/ as a professional chauffeur for luxury limousine services they will have the car hand washed but not use a rough gas station one.

I cannot imagine how a wash every 2 days would not rub off the color …

14,6 km / l … brain explosion … div / 0

An X5 40i xDrive is at 10l / 100km, 9 on Motorway at average of 130 km/h