^
correct sir. just make sure na magandang klase ung oil filter na gagamitin mo. kahit na FS oil, mdyo alangan pa ako mag 10K OCI lalo na pag diesel. If gas, no problem.
actually sir, I am doing a 10k km OCI for our diesel fed engine SUV, but change filter every 5k km. Nagpa-used oil analysis din ako the last time na nagdrain kami ng oil after 10k km OCI, and the result is still satisfactory based on the numbers from the oil test. Sabi nga nung nagtest is the oil still good for another 2 to 2.5k km, pero ang itim na nung oil eh. BTW, oil that we are also using is 15w-40 RP oil.
Has anyone tried Hardex synthetics? Malaysian brand with API, Mercedes and Porsche certs. Affordably priced.