Myth #11: You can go 25,000 miles without an oil change.
This may be one of the worst pieces of advice in recent years. With cleaner running engines and the emergence of synthetic oils, some car manufacturers have stated that engines will run longer than ever recorded.
While this may be partially true, your car needs a regular oil change to keep the internals clean. This is especially applicable to metropolitan drivers, who are trapped in rush hour traffic daily. Most experts suggest changing the oil every three to five thousand miles.
The consequence of not changing the oil is sludge buildup. Sludge causes engine performance to deteriorate. In extreme cases, sludge can even force engines to seize completely. The moral of the story is clear: change your oil regularly.