How long does it take for fuel consumption to return to normal after maintenance?
2 Answers
After maintenance, fuel consumption may increase and take 7-15 days to return to normal. Engine oil issues: Choosing the right engine oil for your vehicle model is crucial. If the oil viscosity is too high, it will reduce the oil's fluidity, affecting both fuel consumption and power output. Additionally, the quality of the engine oil must be carefully considered. Low-quality oils often lack proper cleaning capabilities, leading to carbon buildup in the engine over time, which can negatively impact fuel efficiency. Low tire pressure: Increased fuel consumption is also closely related to tire pressure. If the tire pressure is too low, it will increase the rolling resistance, leading to higher fuel consumption. Moreover, low tire pressure can cause excessive movement and abnormal heat buildup in various parts of the tire, potentially damaging the tire bead. Driving habits: Habitually revving the engine or accelerating aggressively can significantly worsen fuel efficiency. Therefore, it’s essential to develop good driving habits, such as avoiding sudden acceleration. This is especially important in urban areas where traffic congestion is common during peak hours. Learn to release the accelerator early and let the car coast forward using its momentum.
Right after my car maintenance, the fuel consumption also increased briefly for a few days. That time involved an oil change and air filter inspection, and during the first two days of my commute to work, I noticed the fuel gauge dropping noticeably faster, which gave me a bit of a scare. I talked to the mechanic, and he said the new oil needs a break-in period, as the lubrication between mechanical parts hasn’t reached optimal condition yet. I drove as usual, without aggressive acceleration, just my daily commute of about 40 kilometers. After three or four days, I noticed the fuel consumption stabilized and basically returned to normal within a week. If higher-viscosity oil was used or engine parameters were adjusted, it might take a few hundred kilometers to adapt. If it stays high for over two weeks, it’s best to go back to the shop to check if the air filter was installed incorrectly or if there’s a bug in the computer system. In short, don’t worry—just let the car run and adapt after maintenance, and keeping your driving habits consistent can help it return to normal faster.
