Hi folks, just bought 2008 freelander 90,000 miles on clock looks minted, but when accelerating get this rattling noise, sounds like petrol pinking , only louder, anyone any ideas.

If the sound is not excessive, it's the sound of a normal diesel engine on load.

try slick 50 ! i had similar noise in a shogun under load and quietened the engine noise considerably.

Try using a named brand fuel and see if that shows any difference. My wife will insist on using cheap supermarket fuel and when she pulled away the other morning (temp was in minus figures) it sounded like a bag of spanners.