yer joking, sounds like a case of the engine being gummed up from crap oil or its be overheated a few times. i dont think there is a magic cure in a bottle, maybe try pulling the valve train to a million peices and giving it all a good degreasing then lube it all up then change you oil and filter twice in a week, i found with gummy oil change it when the motor is hot as there is a risk of getting burnt but it drains out the motor s**t better, i run hpr50 in my 4.0, fist up in the morning it taps for half a sec on start up but the motor loves it, runs better