My Renault Laguna V6 Auto has over 321,000 kilometers on the "clock" and refuses to stop and all I do is put fuel (RON 98) in, occasionally change the plugs and oil, top up the transmission, and it is nice and comfortable to drive effortlessly on the highway when we are allowed by our Melbourne overlords. Possibly due for retirement when the new tyres need replacing... well that is an option.