What are the solutions for high fuel consumption in Mazda6?

[MartinDella]

Clean the engine carbon deposits. Replace the spark plugs or clean the carbon deposits on the spark plugs. Check the tire pressure and replenish it in time. Replace the fuel injectors.

[DominicRose]

I also experienced high fuel consumption with my Mazda6, mainly due to aggressive driving habits like frequent hard acceleration and sudden braking, which burned through gas quickly. I think adjusting driving techniques first helps—like gentle starts, maintaining steady speeds, avoiding excessive speeding on highways, and not constantly tapping the accelerator. Also, low tire pressure makes the car work harder, naturally increasing fuel use. I check tire pressure regularly, keeping it at the manufacturer’s recommended level, and monitor tire wear, replacing them when necessary. Don’t crank the AC too high either; turning it off in heavy traffic on hot days saves more. Worn spark plugs or a dirty air filter also hurt engine efficiency, so I clean or replace them quarterly. If none of this works, then visit a professional shop to check the oxygen sensor or fuel system issues. Overall, small daily adjustments add up to big savings on gas.