I have Japenese Alto 660cc Model 2008, Milage: 150,000Km, my car engine has started to consume Engine Oil, it consumes around 0.75 liter of oil after running for 3000Km, i switched to ZIC X5 20W-50 (HIFLO) but still my car is consuming oil, apart from this my car is running fine, can anyone recommend what should i do? any good mechanic to whom i can take this car in Rawalpindi / Islamabad.

Thanks in Advance.