Hi Tahir,
Use 0W20 or 5W30 ,,,, Your car is good, the engine 1KRF is crab, which has manufacturing fault, the oil expand'er ring, which job is to keep the oil pushed back in chamber gets hard and does not do its job, and the holes in piston are not made good/smart enough to recirculate the oil. so you will get a oil depletion of 200-400 ml every 1000 km.
You can continue driving, it won't hurt for many miles except oil depletion, well no one is willing to understand and change the expand'er ring, with right tools and reasonable price, hope you get the idea, you will be told to get engine overhauled, which is not the case.