My 2007 Mazda 3 Sport requires premium. I can't afford it now--what will happen if I use regular gas?

Asked by llaframboise Apr 11, 2013 at 03:24 PM about the 2007 Mazda MAZDA3 s Sport Hatchback

Question type: Maintenance & Repair

It is turbo charged.

1 Answer

177,415

The knock sensor will retard the timing. You will have less power and worse MPG's. No permanent damage to the engine.

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