16th Jul 2019, 14:01
Don't know about 61, but in the high 50's range MPG is perfectly possible from this diesel engine from Peugeot; it was one of their best at the time. A lot of these cars in the 1990s and early 2000s (405 and 406) were used as taxis as they were above average in economy and reliability for your typical Peugeot.
16th Jul 2019, 06:38
The reviewer traveled 32k mile over a year, which will mean it was mostly driven on the open road. 30 MPH will use more fuel since you’d be driving in a lower gear. My own experience in a 1.8L BMW manual 3-Series hatch on open road driving with few hills, is 16.5 km/L. A diesel ALWAYS gets more mileage than a petrol car. So yes, 22 km/L is possible with a diesel manual on the open road always running warm.