^^^ good post.
I’m not positive that’s lifter tick. It might be, it could also be accessory noise. You’d need to pull the valve cover off and look for too much or too little valve lash, for starters (excessive slop in the valve rocker arms, there is a little allowable slop, measured with a feeler gauge).
It’s not a good sign that it’s getting worse, regardless of thickened or correct oil viscosity. If that’s the case, it gives the idea that something is on its way to letting go.
Also, is this car direct injection? If so, it may not be valves/lifters at all, but the sound of the high pressure fuel pump (HPFP) as it is pumped by a cam lobe.
Agree, based on the rate of changing sounds, it’s worth getting this to a dealer. BTW - nice car, looks like it’s in good shape. Don’t let hazing on the air intake hit too hard - there are assumptions in play that we can’t gauge accurately. It sounds good - I can hear it in the video, but as the others are letting on, the reusable cloth filters can flow more air but at the expense of less filtration, which I can testify to. (Take a white glove and wipe down the inside of that intake tube, to get a gauge yourself).
Good luck, dealer time. Since those engines do have some weaknesses, they may cover some or more of the repair.
