Quote Originally Posted by tidus1203 View Post
Eh diba Fiesta ka? Ok lang Petron satin in fact yun lagi gamit ko (yung pinaka mura yung Xtra Unleaded) since I feel I get better mileage with them at least sa FoFi.

Personally, I don't think its the fuel... Its one of those quick but unfounded answers by car dealers just for the sake of having an answer.
We have been using Unioil unleaded for some time now with our FoFi. Meron kasing "mini price war" dito sa Pampanga along the side of SM Pampanga.

Lower by P4 per liter

No probs with "knocking".

Ang dapat yata eh ang engine maker will adapt to the local conditions kung saan nila ibebenta yung car.

This is poor research and design on Hyundai's part.