>>>Change the oil / filter with good quality stuff every 2500 - 3000 and just drive it<<<
With all due respect...
Unless you are driving in truly harsh conditions (frequent sandstorms, drag racing, frequent heavy towing, etc.), changing your oil this often is throwing money down a hole. Just because your oil looks dirty at 2000 miles doesn't mean it isn't still good oil, it just means that the oil is doing its job.
Funny how the car manufacturers say, usually, 7500 miles... But the petroleum peddlers, the ones who want you to buy the oil, say 3000 miles. Hmmm...
Modern oils do not need to be changed this often. Ironically, the person who posted this quote has a BMW, and newer model BMW's have a computer that monitors the engine and your driving habits to tell you when to change the oil... And that interval is much closer to what most auto manufacturers suggest, sometimes over 10,000 miles. More than that, even, if you're using a straight synthetic like Mobil 1 (though other research shows that synthetic blends give you practically all the benefits of straight synthetic but at much lower cost).
For years I bought into the line "hey, every 3000 miles is cheap insurance" without question (good advertising by Jiffy Lube!). However, the difference between 33-34 oil/filter changes and 12-13 oil changes over 100,000 miles isn't very cheap at ALL. Furthermore, there's no evidence that more frequent oil changes helps anything, just that more frequent oil changes doesn't HURT anything.
I guess if you don't mind an additional 30 gallons of engine oil over a hundred thousand miles, you're not hurting anything. What you ARE doing is wasting your own money and helping out OPEC.
As for your "lifter noise"... No idea.
