just follow the 5t km change oil ok na.20w50 ang TMO( Toyota Motor Oil).Nilinis din ba oil strainer nung pina top overhaul mo?pina check mo ba PCV? Ung vvti filter ba nilinis din?
Ok lang naman ang 20w50, basta 5,000 km or three months ang interval, pero 15w40 is much better, mas pino yung tunog ng engine, lalo na kung toyota oil filter or baldwin yung kapares nya. Used Castrol 15w40 before, then I switch to Mobil 1000 15w40 until now, mas mura eh, haha, so after 145,000km...my engine is still clean and good as new.