Hi. I have a 1993 2.0L petrol 190 with 116,000 on the clock. I'm thinking of relacing the petrol engine with a diesel (2.0L) I want to keep the car as it belonged to my dad for the last 10 years but not keen on the MPG which is about 25-28. Has anyone done this? whats involved? and can anyone suggest where to start? I'm in Manchester. Thanks guys.