Variation is key. Avoid (the odd lapse is fine, don't lose sleep over it) using more than 1/2 throttle and going more than 2/3 revs for the first 500 miles, and increase it up to 1000 miles. Drive it any way you like after that,obviously avoid racing a cold engine at any time.
Some say engines are built to tighter tolerances these days etc and it doesn't matter, but machined tolerances aren't everything, the piston seal is vitally important to oil consumption, fuel consumption and a better than average output. You have to avoid running in on motorway miles - If you have to jump on the motorway for a long journey home, come off a few junctions and use the A/B roads for 10 mins to rejoin a motorway junction a bit further up.
My 1st MK5 Golf TDI was poor for oil and fuel consumption when run in on motorway miles - don't do it.
