1. Waiting Too Long Between Oil Changes
Many drivers delay oil changes, thinking it won’t make a difference. But old oil breaks down, loses its lubrication properties, and can cause severe engine wear. Always follow your vehicle manufacturer’s recommended schedule, usually every 5,000 to 10,000 km, depending on your car and oil type.
2. Using the Wrong Type of Oil
Not all oils are created equal. Using the wrong viscosity or formula can affect your car’s performance and fuel efficiency. Always check your owner’s manual for the right grade and type whether it’s conventional, synthetic, or a blend.
3. Forgetting to Replace the Oil Filter
Your oil filter traps dirt and debris. If you skip changing it, that dirt goes straight back into your fresh oil, defeating the purpose of an oil change. Replace the filter every time you change your oil to keep your engine clean.
4. Overfilling or Underfilling the Oil
Too much oil can cause foaming and pressure buildup, while too little can starve your engine of lubrication. Use the dipstick to ensure the oil level is just right — between the minimum and maximum marks.
5. Not Warming Up the Engine First
Cold oil doesn’t drain properly. Let your engine run for a few minutes before changing the oil so it flows out smoothly, carrying away more dirt and sludge.
6. Tightening the Drain Plug Too Much
It might seem like tightening the plug extra hard prevents leaks, but it can actually strip the threads or crack the oil pan. Hand-tighten it, then give it a small additional turn using a wrench that’s enough.
7. Ignoring Oil Leaks
If you spot oil under your car after a change, don’t ignore it. It could mean a loose filter, a damaged gasket, or a faulty plug. Address leaks immediately to avoid engine damage.
8. Not Checking for Old Oil Residue
Sometimes old oil gets trapped in the system or on engine components. Wipe away any spills or residue before closing the hood this prevents burning smells and smoke later.
9. Using Cheap, Low-Quality Oil
Budget oils might seem like a deal, but they often lack the additives that protect your engine. Investing in high-quality oil helps your engine run smoother and last longer.
10. Forgetting to Reset the Oil Change Light
After changing your oil, remember to reset your car’s oil change reminder system. Skipping this step can confuse your maintenance tracking and lead to missed future oil changes.
Final Thoughts
An oil change is one of the easiest and most affordable ways to keep your car running efficiently but only if done right. Avoiding these common mistakes will extend your engine’s life, improve performance, and save you money on repairs.