Been noticing what I think is a lifter tick on some cold starts. Not all the time. We had some -20F mornings and it was not present.
I’m trying to correlate it to something. Like did it get to full OT last drive of the day before parking overnight, or was I doing a lot of highway driving where the AFM would have been kicking in more presumably?
I ordered a Range Disabler to hold me over until Springtime when I can do a cam/lifter swap and tune. Leaning towards a Brian Tooley kit. Might wind up boosting in the summer.
Only on my second oil change with Mobil 1 advanced full synthetic, extended performance, high mileage 5w30 since taking ownership.