Mineral , semi synthetic or fully synthetic?

[jaggerx3]

Sakin kung ramdam na mahina na humatak yung engine, kahit wala pa sa specified kilometers na natatakbo, pinapalitan ko na yung oil.

BTW, has anyone tried using Bardahl SynPower Fully Synthetic 15W-40? I'm planning to use this on D4D engine. Sa area lang namin ako naghahanap eh so kokonti lang mapapagpilian. Meron din nga palang Top 1 SDO, but currently looking for FS oils. TIA

Okay yang TOP1 SDO.