Bros and sis, meron akong nabasang old thread dito about engine oil of 4jg2 engine Trooper. Maganda raw performance ng 5W-30 engine oil para sa 4jg2. But 5W-30 ang recomended sa 4jx1 at 10w-30 sa 4jg2. Ask ko lang comments nyo about using 5W-30 on a 4jg2 engine? Nakalagay kasi owners manual na "Not recommended for sustained high speed driving" ang 5w-30 sa 4jg2. TNX.