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I knew since this car first came out that it took premium, but I was reading an article that had clips from the owners manual that says that 93 octane was "recommended" and did not use the words "required" like I have seen talking about other cars. Im kind of surprised that this car would require premium, and out of fear of not getting a reliable answer from a salesman at the dealer, id hold you guys opinions higher.
So is premium absolutely a necessity, or are you just losing a little performance? I get why you would need it in a s/c or t/c car but I do not understand why its a necessity in a 2 liter 4 cyl 200 hp car?
You should use premium.. however.. all modern cars have knock sensors that will detect detonation and retard timing.. This will reduce power and protect the engine.. Use premium and drive it like it was intended.
2009 Scion Xd
1999 BMW M3 Coupe`