Yeah good tip, if I ever take to motorways in it again I'll remember that. They're just not the habitat for a 2.5na, and she goes great around A/B roads to be fair I can't see the appeal
Just a quick follow up for anyone that might end up in the same boat. Seems the governor weighted basket might have got stuck in the injector pump, it worked loose after a few knocks - diesel cleaner in the tank and has been running as normal...