Have done the oil change this morning. Used Vic filters and Motul 15w-50 technosynthese oil. The rattle and vibration are greatly diminished which now makes me believe the previous oil used was bad/cheap. The Motul cost me about P579/Liter at true value. The filters (primary and secondary) put me back another P600 while labor for the oil change was at P360. I asked the mechanic to please adjust the valve tappet clearance but he said my engine (2.2L diesel Kia Magma) was not adjustable at their end. I will have to get the whole cylinder head assembly removed and brought to a machine shop. It was, as he explained, self adjusting. I saw in different threads here in our forum the use of 2T oil and timing. I put in 200 ml 2t oil in the tank earlier and thinking of getting the engines timing checked in the next few days. There is still just a faint trace of smoke but let us see in the coming days. As Miked recommended, start saving money so I would probably do that as well ... :-)