I've pumped a tank full up to fuel filling cap of RON95 right from near empty at Rawang Northbound RSA and cost me about RM110. Then drive around 130-140km/h to my village in KEDAH, near Thailand border and refilled again with RON95 up to fuel cap. The distance was 420km. The fuel only cost me about RM53.34. No knocking or what so ever even with 3 persons and a trunk full of bags, barang raya. FYI.. my Blacktop 20V engine was overhauled about two months ago, ported and polished, crank balancing, use thicker metal head gasket (1.2mm). Very puas hati laa... like new engine.