Quote Originally Posted by speedyfix View Post
RP is group IV. it's a PAO oil.

again i doubt mobil 1 even if imported is ester. it's normally a group 3 composed of a mineral base stock with synthetic additives.
Quote Originally Posted by Ry_Tower View Post
I can't find the file that I read somewhere before but Mobil 1 is PAO oil as well. Hindi nga group V, group IV. Ester based. Anyway, it's good oil. Factory used by BMW, Porsche, MB and other high-end cars. RP and Motul are race inspired as well so talagang maganda din. Pareho pati price maganda.
Found it. Auto-Rx (Philippines) | About Oil

Mobil 1 is synthetic. Group IV nga.