Hi everyone! I have a 2014 Honda City Aspire 1.5. It just reached it's 15000 km mileage and I'm going to take it to Honda 3S Rawalpindi for the 15,000 km maintenance. However, I'm not so sure about Honda's own engine oil. So, suggestions are welcome from people who have more experience in this thing. Previosuly I've used Havoline 10w40 and I think that was just okay! Also, if I believe I'm getting relatively slow acceleration these days, could the need to replace engine oil be the reason?