Hi there. My tire pressure is fine i check it regularly (36 psi) cold. I only use Chevron (94 octane). I changed my oil at about 1000 KMS and i'm currently at 2550 kms. So my car is still brand new. My air filter is the one that came with car. I think my cruising RPM is normal around 2000 grand. Is 12.5 MPG bad because i've seen this car get 18+ MPG city before?
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