I have an 88 cherokee 4.0 with 162,000 miles.
Engine runs great, uses absolutely no oil but has what seems like one lifter that ticks at idle.
Have to bring rpm's up to 3,000 before it will unstick. I have tried all types of cleaners and additives at oil change but no luck. Oil pressure is just shy of 40 at idle. Engine runs great, uses absolutely no oil but has what seems like one lifter that ticks at idle. Have to bring rpm's up to 3,000 before it will unstick.