Appearance
* Automatic transmission: Usually has a small oil bath and a separate hole for the dipstick. The gear selector often has distinct positions ‘P’, ‘R’, ‘N’, ‘D’ etc.
* CVT: Typically has a smaller oil pan and may not have a separate dipstick hole. The gear selector often has a smoother action, without clear stops.
Job
* Automatic transmission: Gear shifting is carried out through conventional mechanical gears and a planetary system. Feels like jolts or clicks when changing gears.
* CVT: Uses a belt and pulleys to transmit power. Gear changes occur smoothly, without noticeable jolts.
Sound
* Automatic transmission: Clicking or humming noise is heard when changing gears.
* CVT: Makes a characteristic whirring or whining noise when accelerating.
Efficiency
* Automatic transmissions: Typically less efficient than CVTs due to mechanical losses.
* CVTs: Typically more efficient because they can maintain the optimal gear ratio for different speeds.
Maintenance
* Automatic transmissions: Require regular oil and filter changes.
* CVTs: Typically require oil changes at shorter intervals and can be more difficult and expensive to repair.
Additional Tips
*Check the vehicle’s VIN number on the manufacturer’s website to determine the transmission type.
*Consult an auto mechanic who specializes in servicing Toyota transmissions.
* Pay attention to how it feels when driving. Smooth gear shifting indicates a CVT, while jolts or clicks indicate an automatic transmission.