Checking engine mileage against tachometer
I have just bought a 2011 DS4 with just 63k kms on the clock and I want to check if the engine mileage matches the tachometer
I bought a OBD II dongle and have downloaded a free app but couldn't see anything when I connected. Before I pay for the full app, will the engine mileage be found in the engine or transmission ECU?
Any help would be most appreciated