Changing the transmission fluid in a vehicle should take place based on the manufacturer's written recommendation, which ranges from 30,000 to 60,000 miles for manual transmissions and 60,000 to 100,000 miles for automatic transmissions. More frequent changes do not harm the components.
Like many of the fluids used in modern vehicles, transmission fluid is a petroleum-based liquid designed to act as both a lubricant and a hydraulic fluid. It both assists with gear changes and ensures that gears move freely within the transmission. Every manufacturer is different, and some even recommend a transmission flush every 15,000 miles for a manual gear box. Alternately, some automatic transmissions have no written recommendations at all.Learn More
With few exceptions, cars with automatic transmissions should always be shifted into overdrive, as it allows the vehicle to shift into the highest gear available. While in a lower gear, the engine may work harder to maintain speed and use more fuel.Full Answer >
A transmission can prompt a whining noise if the operating system has malfunctioned, the gears are not operating correctly or the transmission fluid needs to be changed.Full Answer >
An automatic transmission valve body is a major component of a vehicle's automatic transmission system and directs pressurized transmission fluid to a network of valves that engage appropriate clutch packs for smooth gear shifting. These valves use pressure as hydraulic signals to determine which gear set, also called band servo, to select when the vehicle changes speed.Full Answer >
The transmission fluid should be replaced on a regular basis. Regardless of having a manual or automatic transmission fluid, regularly changing it will avoid costly transmission repairs.Full Answer >