herm, this is the catch, i dunno what is honda's mechanic problems, but honda city runs in thailand n indonesia using ron 91 n ron 88. N in singapore also can run on ron 92@95. Even if malaysia is ron 92 with additive to make it ron 95(i dont think so), but it still higher than ron 91 n even higher than ron 88. I wonder why suddenly honda city in malaysia need ron 97?

New modern cars can retard its timing to coupe with the lower octane. I think its the ecu problems. Whether they dont want to claim it or any other reason. Loss of performance yes, but causing problems to engine, nope i think unless the ems has prob. Unless its equip with super high compression ratio performance engine like type r engine, but dont think so.

I think better ts go to other reputable honda service centre to check the probs. Maybe some forumers can help.

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Added on May 21, 2012, 10:27 pmherm, this is the catch, i dunno what is honda's mechanic problems, but honda city runs in thailand n indonesia using ron 91 n ron 88. N in singapore also can run on ron 92@95. Even if malaysia is ron 92 with additive to make it ron 95(i dont think so), but it still higher than ron 91 n even higher than ron 88. I wonder why suddenly honda city in malaysia need ron 97?

New modern cars can retard its timing to coupe with the lower octane. I think its the ecu problems. Whether they dont want to claim it or any other reason. Loss of performance yes, but causing problems to engine, nope i think unless the ems has prob. Unless its equip with super high compression ratio performance engine like type r engine, but dont think so.

I think better ts go to other reputable honda service centre to check the probs. Maybe some forumers can help.

This post has been edited by mat79: May 21 2012, 10:27 PM