Calcium compounds are widely used. There are vast deposits of limestone (calcium carbonate) used directly as a building stone and indirectly for cement. When limestone is heated in kilns it gives off carbon dioxide gas leaving behind quicklime (calcium oxide).
How to Change Transmission Fluid. Transmission fluid needs to be changed from time to time in order to extend the life of the transmission, usually every 30,000â60,000 miles (48,000â97,000 km) (sometimes more â check your owner's manual for service intervals).
For 2010-12 years it states for normal use, manual transmission fluid should be inspected every 30k mi or 48k km. Automatic transmission fluid should be inspected every 37.5k mi or 60k km. None of the transmissions in this car have a dipstick to check the fluid level. For severe use, the schedule says to replace manual transmission fluid every 60k miles or 96k km.