Hi,
I have owned a Freelander 1 TD4 for 14 years. In a senior moment I have filled it with petrol and ran it for about 2 miles before it stuttered. It was over a quarter full with diesel before I topped it up with petrol. My insurance company tell me that their policy will be to write-off a vehicle over 10 years old after a miss-fueling. I like the car and want to keep it running for as long as possible. Any idea if a drain off and filter change will likely fix it?