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.

[VanAmara]

I've dealt with the issue of high fuel consumption in the Mazda6, usually starting with checking simple components myself. First, I inspect the air filter - if it's dirty, I'll either blow it clean or replace it, as excessive dust can restrict engine airflow. Spark plugs are prone to wear, and old ones cause incomplete combustion leading to higher fuel consumption, so I regularly remove and inspect them, replacing the set when necessary to maintain efficiency. Poor quality or overly viscous engine oil also increases friction, so I opt for low-viscosity, fuel-efficient oil when changing it. Tire condition is crucial - low pressure or uneven wear increases rolling resistance, so I manually check and adjust tire pressure. When driving, I avoid overloading with heavy luggage or too many passengers to reduce weight. Occasionally, engine carbon buildup needs cleaning, which I handle with fuel additives. If the problem persists, professional inspection of electrical circuits or sensors is required. These DIY methods work well for routine maintenance.

[MarianaLee]

For the high fuel consumption issue with the Mazda 6, I recommend starting with environmental optimization. Avoid setting the air conditioning too low when using it, as heavy traffic in hot weather increases consumption—consider turning it off or reducing the fan speed. Detour around routes with poor road conditions and frequent traffic lights to avoid constant stop-and-go driving. During seasonal changes, inspect the fuel system and use additives to clean the fuel injectors, reducing carbon buildup that affects fuel efficiency. Gentle acceleration from a start is more economical, and avoid sudden braking. During long-term maintenance, check tire pressure and the air filter, addressing any wear promptly. Small adjustments can accumulate to significantly save fuel.