Re: High-mileage truck
The 4.6 is a good engine. Make sure to get ALL maintenance records. If they can't provide them and they say that regular maintenance has been performed ask them where they took it for regular servicing so you can get the records from that shop/dealer. Another note: off-lease vehicles generally are the ones that were abused by the original owner as they planned to hand the keys in from the beginning of the lease. If the transmission shifts fine (it is vital to test drive for 20-25min to get fluids up to temp) and you don't hear any 'clunk' noises when you accelerate or stop then the drivetrain is generally sound! Check ALL the fluids and make sure they're not too dark, smell burnt or feel gritty (yes get the hands dirty). Gritty oils will generally mean a big bill might be headed your way..
With high mileage comes more routine maintenance. If you decide on the purchase without maintenance records then change ALL fluids (diffs, engine oil, coolant, transmission). I recommend going synthetic with engine and transmission oil.
Look up NHTSA website for any recalls that have been or may have to be performed to the truck in question.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!