MORE MILAGE 2007 PATHFINDER

I had a Pathfinder and was disappointed in the fuel consumption. I would look at the freeze frame data and just make sure the Long Term fuel trim figures are OK, I would look at the O2 sensor voltages, make sure the mass air flow meter is OK perhaps clean it with CRC product # 05110 Maybe have the fuel injectors cleaned if the engine has high mileage.

BE sure that your air cleaner is good, spark plugs and wires good, use higher octane gasoline(I know more money) but you do get a little better mileage with more octane. You could try changing the gas filter also. Fuel injector cleaner is also a good idea.