Overdrive is especially helpful for long-distance freeway driving, the place protecting a higher velocity with small motor effort is useful.  The traditional torque converter automatic transmission makes use of a hydraulic procedure to control gear shifts. It employs a torque converter, that is a fluid coupling that transfers engine energy https://gearbox-auto78135.wizzardsblog.com/33600459/the-ultimate-guide-to-gearbox-auto