All lifters had to be replaced at 5,315 miles on 7/28/21 #7 Piston had to be replaced at 42,431 miles on 5/24/24 This vehicle has the 6.2 L V8 L87 engine that is part of NHTSA Investigation # PE25001 I am reaching the 5yr/50,000 mile drivetrain warranty and am concerned that this engine could have recurring problems.