Quote:
Originally Posted by manuelgps7
I was told once my Jeep gets around 15000 kms the engine will perform according to specifications.
|
You won't have to wait that long. Many of us have found that somewhere between 3500-5000km the engine suddenly produces more power & torque and uses less fuel; something to do with the computer "learning" all the different variables and letting go of the run-in programming (do a search, as it's been better explained in other threads here than I have done).
Around 15000 km the entire drivetrain will have settled in & loosened up some, giving further improvements in performance & economy; the JKs do tend to be fairly "tight" when straight off the showroom floor. My 6-speed (according to the tripmeter) is averaging 11.8L\100km Urban now with 20k on the clock; wouldn't get under 14.5 for the first 3000km or so.