In the car owners community there is a conflicting points on how to wash the oil system. Some arguing that it's enough to change the oil and the oil filter by a manufacturer intervals. Some tells to use the washing oils with strong detergent components. Others regularly use special flushes for oil systems. Also in each car service there is a service for a deep engine flushing. Its cost in some regions reaches $1,000 USD, and even higher.
Water, mud, salt, hight temperature over the 200°C and 5-10 years without changing of grease! In that conditions calipers works and provides your safety.
Engine power can be increased by a few ways such a chip-tuning, engine changing, increasing engine cylinders volume and more. Which way to choose, what needs to know and how to increase power by 7% in 15 minutes - see in that article.