2000 Mercedes-Benz M-Class Base 4dr AWD 3.2L
Mechanic Q: reset navigation system?
navigation system is set for a point 180 miles from my home. how do i reset it?
Q: improving mileage?
tires 35psi, air filter clean, 5w40 synthetic oil. is there anything i can do to get better mileage than 15-18mpg using cruise most of the time. different exhaust system, air cleaner, tires, other lubricants?