I am hearing news in our country that they might upgrade our fuel from EURO 2 gasoline to EURO 4. I am worried that it might damage the engine on my 95 corolla, which I still plan on keeping for at least a few more years. My car currently has 130,000km and still pretty much runs solid. I am just worried that the fuel upgrade might damage the engine. I am not concerned with the fuel efficiency as I am already expecting it to be less efficient.
It clarifies half way through the article, stating "He clarified that Euro 4 fuel could still be loaded in old vehicles." (the "He" being Environment Secretary Ramon Paje). I don't think you'll have an issue.