pre try mo toh. if you want better performance ng oil or pag nag change oil ka na,..Try mo Lambda oil treatment bago ka mag change oil. a bit mahal pero sure ka pre maganda ang performance ng oil tsaka ng engine. kahit na anu oil gamitin mo gaganda engine mo. kung gsto mo other information about this one try to reached sa digic_tse*yahoo.com or tawag ka sa 632 8245859 tanong ka lng kung anu ung lambda na sinasabi ko. mabibigla ka sa kaya nyang gawin. tested and proven. regarding naman pre if oil alone mas maganda and shell for me.