Today I got my car scanned and verified that No-Code are appearing. Moreover, performed exhaust emission test and that was also satisfactory. Just noticed that engine is throwing water-droplet in exhaust (a sign of perfect combustion).
I will have engine oil, gear oil and coolant change this weekend.
So far the car is ruining great, it is turning to be muscle car now.
I hope this answer all the observation of PW member made