Salam n hi to all hondarian@ZTH.. Anyone can suggest me for the best oil for B-Series engine? Currently using B18Cr engine on my EK 4 door. Usually use my car for long distance trip (700km) every 2 weeks. Already tried Shell HX5 15w-40...good performance at first but kinda quick to burn. Also ENEOS 15w-40...performance drop drastically,so i think its bad. So,anyone who use B-Series engine can suggest any best oil? Thanks in advance.