again, no such thing as the best engine oil. depends on what is recommended by the vehicle. even if u use 20w50 also no problem as long as u change every 5000km....... must use fully synthetic lah itu lah ini lah, itu semua gimmick....... berapa byk kereta terbarai kat auto bavaria coz follow sgt recommended every 25,000km change of engine oil...... kesian aku tgk customer2 kereta tu....... mechanic nak bagi advice pun takut sbb takut kena marah dgn boss ab...... unless to close friends, ok lah.....
msia mana ada suhu -10 darjah celcius. why need oil that is so thin. msia temperature constant lah. khatulistiwa mahh.... but if u prefer 0w50, tak salah pun....... cuma to me, some ppl say if u use 20w50, engine nanti rosaklah itu lah ini lah......... i don't believe that.
kalau drive everyday mcm f1 cars, pakai engine oil apa grading pun engine cepat kong.....
unless u drive to ur workplace everyday 200km/h n must reach ur workplace 1.259 seconds faster than ur colleague, then expensive engine oil is important. normal daily driving, hentam saje any engine oil. most important, must have ur own fixed interval of oil change........
anyway, supergripen, to answer ur question, i use any brand 10w40 semi-synthetic engine oil, change it every 5000km........