Did a small roadtrip over the weekend - approx 360 miles - 1995 defender 90 300tdi performed like a dream, except about 12 miles from home i experience sudden power loss went from happy 70mph to unhappy 30 mph, no power through any gears at all really, pulled over tapped accelerator pedal but not much response - felt like fuel starvation or similar . left her ticking over for a few minutes to check everything, set off again and all was fine - didn't happen again rest of 12 miles home - any thoughts would be very welcome.