Changing your car’s oil at regular intervals isn’t just a good idea — it’s a vital part of keeping your car’s engine running properly. The purpose of engine oil is to keep the internal parts of your car’s engine lubricated and cool. It keeps the moving parts from grinding against each other causing wear and damage.
Without frequent oil changes, dirt and sludge can build up in the engine, and old, dirty oil won’t lubricate the moving parts as well as new, fresh oil will. Dirty oil leads to serious damage, and if things get bad enough, there may be an engine replacement in your future.