14-08-2012, 08:28 AM
I rekon there's much to be gained with HDis with regards to injection timing at cruise speed... I've noticed if I adjust it on my car it can be amazing on fuel or crap on fuel, purely down to the static timing of the engine - obviously that's an older XUD9, but DI diesels are even more sensitive to it....
Peugeot were constrained to emissions regulations whilst being able to keep ultimate longevity when the car is operating at -30*C out or +45*C and still work efficiently and reliably - I'd say for our country there's much to be improved upon - no reason a HDi shouldn't regularly hit 60mpg+ if an old XUD9 with it's ancient injection system can still hit 55mpg!
Peugeot were constrained to emissions regulations whilst being able to keep ultimate longevity when the car is operating at -30*C out or +45*C and still work efficiently and reliably - I'd say for our country there's much to be improved upon - no reason a HDi shouldn't regularly hit 60mpg+ if an old XUD9 with it's ancient injection system can still hit 55mpg!
