I have a chance at buying a 05 chevrolet 3500 crew cab long box with a LLY 6.6 duramax in it with 240,000 km's it's been inspected or has had maintenance done to it once every year since the owner bought it (oil changes whenever it needed one) never towed anything with it but has drove it with 2 quads/sleds on the deck pretty much all year round. What i want to know is this a "danger" zone amount of km's for this truck? i hear a lot about injectors going on these motors