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).
You're supposed to change the brake fluid every 2 years or 24K miles. Local dealer charged $78.00 for the job. The transmission fluid change was don't at 39K and cost me $220.00. The original spec called for no fluid changes, but the SA tells me that MB started recommending ONE transmission fluid change at 39K.