Ok so I take my truck to the shop to get checked out because it is smoking when you get on the gas. Engine is running good no noises knocking are anything. I'm thinking valve guide seals. So they say they how to do a compression test to find out how much oil the truck is using. They go to change the oil said there was no oil in the truck because it has been parked for 3 months but somehow they got old to drain out anyway said there was a little bit of metal in the oil understandable the truck was burning a lot of oil and would get low so I can understand a little metal being in the oil. Mechanic you need a whole new motor because we found a little bit of metal in your oil they said it wasn't much oil at all but now want to charge me $4'000 for a new motor when the motor I have is not knocking overheating doing nothing but I need a new motor. Got charged for a oil change that's when they saw the metal. Drove 4 miles home checked oil it was dark not brand new and still have the same exact oil filter I put on a month ago.