Went for my 10K servicing at TCM and paid for the Fastflo oil. Can feel the revving a little rough. Previous 1K and 5K was on mineral oil. After my 5K servicing, drove to KL and manage to get 16+km/L but after the 10K servicing only can get 15km/L.
Read so much abt the amsoil and was thinking of changing to it. Which amsoil oil would be good to change, 5W30, 0W30? Ride is sport 4AT.