its probably reversed, My reasoning is that no one buys a car to become a showpiece at their house, 2013 is 7 years old and 50,000 kms is 2 year usage under normal driving.
anyway - you need regular API GL4, 80w90 which is sold at suzuki dealer for cheap. Or Zic FF API GL4 75w90 from shops. Drain and refill it - and make sure the car is standing level straight when filling and checking gear oil. Meaning Do not do this on ramps or with jack which will cause front of car to raise up.
If you fill with car raised up at front, then the oil level will be low when its straight on ground.