Nag fuel knock ang 2003 kia sedona ko, 3 units fuso canters, namamatay ang isang fuego at crosswind namin din. When I shifted my kia to shell, the canters, fuego and crosswind to another supplier, nawala ang mga problema. We get diesel as an industrial account. The suppliers reassure us that automotive grade diesels ang sinusupply nila. Was surprised to hear that petron diesel is only 54 cetane! Other suppliers claim 56 cetane. I doubt if that particular diesel reached 54 kasi nag fuel knock. Muntik na buksan ng Kia ang injection pump ko. While waiting for approval to claim under warranty, I happened to load with a Shell gas station. After using the car several days after, biglang napansin ko nawala ang fuel knock, mas maganda ang hatak. Crosschecking my records, na identify ko Petron yung source, similar with the other vehicles.
To be fair, we have loaded petron on other occasions. But never experienced this bad a result. The problem here is for such a big company, I expected their quality control to be way up there. But gulat ako when I told Kia of my theory that the knock is identified with the use of Petron diesel, sabi ng Kia sa akin they have received several complaints from other Kia users of problems associated with petron diesel!
Plano ko pa man din ilipat ang company fleet card namin from shell to petron dahil sa petron fleet card, meron 0.75% rebate plus points system to earn prizes. Di na bale. Mas mahal masiraan ng injection system.


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