Salam guys. I need some expert views on my situation, I have corolla GLI 2012 ODO 52,000km driven. The car is in a very good condition and mechanically sound and also recently tuned. The car was also checked with scanner to see the values of sensors.
I used to get 13 to 14 plus km/l in city using ac. but the mileage keeps on fluctuating depending on fuel and car mood too. but now for couple of months the mileage has come down from 11 to 12.88 km/l . last month the car gave me 14.44km/l in city with ac. i fail to understand whats the reason.
i was shell 5w-30 hx7 oil and now poured Kixx pao c3 5w-40. but i believe this oil can show good results on heavy engine cars above 1800cc. on next oil change i will switch to kixx 5w-30 fully synthetic. I am using this in my swift 2014 model 7000km driven and the engine has gone very smooth and light.
can anyone tell me what can be the reason for this mileage fluctuation ?