Transmission fluid should be changed while doing the 30,000 mile inspection.
Changed again each 30,000 miles or about every two years for
transmission long life.
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Automatic Transmission Fluids
Automatic transmission fluids must perform many demanding functions.
These include helping transfer power from the engine to the transmission
via way of the torque converter, a hydraulic fluid for the control system
inside the transmission, a heat transfer medium to help maintain proper transmission
temperature, a lubricant and a energy transfer medium for
bands and clutches.
Because of these demands we recommend fluid changes no less than
every 30,000 miles. Transmissions withstand the torture of summer
heat and winters slip and sliding.
Not to many years ago only two types of automatic transmission fluid were
used. Type 'A' was used in General Motors vehicles and Type 'F' in Ford.
Today the specifications change from year to year and by manufacturer. Consult your owners
manual or a shop manual if in doubt. |