Looking at a used truck, but as always with pre-owned, there are rarely guarantees on how well it has been maintained. This one is a 2011 GMC 2500 HD with 6.0 gas. It is with an individual locally who has owned it since 2014 at 86,000 miles. It now has 106,000 miles. Prior to that it spent its whole life as a lease vehicle in Canada. The current owner bought it at online auction from the lease company. It seems to run and drive fine. Carfax confirms that its entire life before current was in Canada as a lease...zero maintenance records on Carfax...which doesn't prove anything i understand. My concern are these first 86k miles. Do leases REQUIRE regular maintenance to be performed? If not, I would think the Canadian cold would be even worse on neglected oil.