Hello good people. I bought a 2014 tourer premium back in August 17. I get around 14-15 km/l and 17-18 km/l with and without AC respectively. I want to get the full potential out of this car and in that context, I need some suggestions:
1) I will soon have to replace all four tires. Which ones should I opt for and why? My main requirements are high quality, long lasting and good ground clearance. Also, at what pressure should I fill these up? Currently I'm at the average 30 PSI.
2) I've been using Ravenol 5W40 along with a micro air filter for my turbo version. Should I stick to the same or change the oil?
3) Up til now I've had carbon cleaning and catalytic converter serviced from motor clean. I did get some gains in acceleration and fuel average after that. I have not changed any other oil (except for engine oil of course) after getting the car back in August 17. Should I opt something else too? Some other oil/coolant change?