Will Adding Too Much Manual Transmission Fluid Increase Fuel Consumption?
1 Answers
Adding too much transmission fluid will not increase fuel consumption, but it can cause harm. Transmission fluid is used to keep the gear system clean, providing lubrication and extending the lifespan of the transmission components. It also ensures effective lubrication at low temperatures and reduces fluid loss under harsh operating conditions. If it's AT (Automatic Transmission): Overfilling can lead to issues such as failure to shift gears, harsh shifting, inability to drive when the vehicle is hot, leakage due to damaged seals, and potential damage to the transmission torque converter. If it's MT (Manual Transmission): There is a fill hole, and once the fluid reaches the correct level, excess will drain out, so adding a bit extra has minimal impact.