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The 8L 90 is the first 8-speed automatic transmission built by General Motors. It was debuting in 2014 and is designed for use in longitudinal engine applications either attached to the front-located engine [ 3 ] with a standard bell housing or in the rear of the car adjacent to the differential (as in the Corvette).
With modern drive by wire fuel controls, problems are believed to occur exclusively while the vehicle is under way. General Motors cars of the 1950s with automatic transmissions have the R for reverse at the furthest clockwise position in the rotation of the column-mounted shift lever. L for low position is just adjacent as the lever moves one ...
On Mazda vehicles, this transmission uses Mazda M5 fluid (Mazda part number: 0000-77-112E-01), which is NOT Mercon V or Mercon LV according to Mazda Technical Service Bulletin 0500116. This fluid is made by Idemitsu Kosan (according to the label on the back of the Mazda bottle).
The 6HP is the first transmission to use this 6-speed gearset concept. The last 6HP automatic transmission was produced by the Saarbrücken plant in March 2014 after 7,050,232 units were produced. [3] [4] The ZF plant in Shanghai continued to produce the 6HP for the Chinese market. [3]
In 1923, a patent was approved in the United States describing the operation of a transmission where the manual shifting of gears and manual operation of a clutch was eliminated. This patent was submitted by Henry R. Hoffman from Chicago and was titled: Automatic Gear Shift and Speed Control. The patent described the workings of such a ...
When it is switched on, an automatic transmission can shift into overdrive mode after a certain speed is reached (usually 70+ km/h [40-45 mph or more] depending on the load). When it is off, the automatic transmission shifting is limited to the lower gears. Overdrive should usually be selected when the average speed is above 70 km/h (40-45 mph).
Twin Clutch SST (Sport-or Sportronic Shift Transmission) is the brand name of a six-speed dual-clutch automatic transmission, developed by Getrag for Mitsubishi Motors. [1] The system was first incorporated in the 2008 Lancer Evolution X , [ 2 ] [ 3 ] and was designed to be a more performance-oriented system than that developed by rival ...
This nomenclature was also used by Mercedes-Benz with the introduction of the four-speed type-3 automatic transmission. As with the Hydra-Matic, the "L" position was actually 1st and 2nd gears, holding the transmissions from shifting above 2nd gear. In Roto the L position meant 3.50 as first range, changing due to 2.93.