We often go home in customers cars if its a problem job and that would mean a trip of about 20 miles, never had a complaint yet.

For a routine service around 1-2 mile is what we would normally do.

Intermittent faults which you need to drive a longer than normal distance but the customer brings the car in empty is what annoys us.

Strange how they (customers) think , moan for using the fuel on a test drive but bring the c ar in for a fault with no fuel in as they expect you to add fuel.

They want it both ways.