10 Common Mistakes To Avoid When Changing Your Oil

Changing your car’s oil is a critical maintenance task to keep your engine running smoothly. Unfortunately, it’s easy to do them incorrectly, leading to engine damage, reduced performance, or voided warranties.

Small oversights, such as using the wrong oil, can have major consequences for your vehicle’s health and longevity. Below, we’ll reveal 10 common mistakes to avoid when changing your oil and offer practical solutions to maintain your engine properly. Avoiding these errors will ensure optimal performance and extend your vehicle’s lifespan.

Signs It’s Time for an Oil Change

Check your oil level monthly using the dipstick. If it appears black or gritty, or it falls below the minimum mark, schedule a change immediately. Fresh oil flows smoothly and appears amber or black, while old oil becomes thick and sticky. If you notice metal particles or excessive dirt in your oil, change it promptly to prevent engine damage.

Your engine may also signal the need for new oil through unusual noises, such as knocking or grinding sounds. Modern vehicles often display oil life indicators on the dashboard, typically recommending changes every 3,000 to 10,000 miles, depending on your oil type and driving conditions.

Mistake 1: Using the Wrong Type of Oil

Not all motor oils are created equal, and using the incorrect type can severely impact your engine’s performance. Your owner’s manual specifies the exact viscosity rating, such as 5W-30 or 10W-40, and the oil type your engine requires.

Using oil with the wrong viscosity can cause poor lubrication, increased wear, and reduced fuel efficiency. Always verify your vehicle’s requirements before purchasing oil, and never mix different oil types without consulting your manual.

Mistake 2: Not Warming Up the Engine

Cold oil flows poorly and doesn’t drain completely from your engine’s components. Warm oil flows more easily and removes more contaminants and old oil from your engine. Running your engine for two to three minutes before changing the oil warms it to the optimal temperature for drainage. However, avoid overheating the engine, as extremely hot oil can cause burns and make the drain plug difficult to handle safely.

Mistake 3: Forgetting To Remove the Old Oil Filter

Your oil filter traps contaminants and debris and becomes increasingly clogged over time. Failing to replace it during an oil change means it will continue to circulate dirty oil through your engine, negating the benefits of fresh oil.

Always replace the oil filter with every oil change, even if it appears clean externally. The internal filtering material degrades over time and loses effectiveness, making replacement essential for proper engine protection.

Mistake 4: Over- or Under-Tightening the Drain Plug

The drain plug requires precise torque to seal properly without damaging the oil pan threads. Over-tightening can strip the threads, crack the oil pan, or make future removal extremely difficult.

Under-tightening poses equal risks, potentially causing oil leaks that can lead to catastrophic engine damage. Most drain plugs require 25 to 30 foot-pounds of torque, but consult your manual for exact specifications.

Mistake 5: Overfilling the Oil

More oil doesn’t mean better protection. Overfilling can cause the crankshaft to whip the oil into foam, reducing its lubricating properties and potentially damaging engine seals. Excess oil creates increased pressure within the engine, forcing oil past seals and gaskets. This can lead to oil leaks, a smoking exhaust, and reduced engine performance. Always check the oil level with the dipstick after adding oil, ensuring it falls between the minimum and maximum marks.

Mistake 6: Not Replacing the Drain Plug Washer

The small washer or gasket on your drain plug creates a crucial seal against oil leaks. Reusing old washers can result in slow leaks that gradually worsen over time. These washers are inexpensive but vital for maintaining a proper seal.

Old washers may appear functional but lose their ability to compress and seal effectively, especially after exposure to heat and oil. Replace the drain plug washer with every oil change, ensuring it matches your drain plug’s specifications.

Mistake 7: Disposing of Old Oil Improperly

Used motor oil is hazardous waste that requires proper disposal. Pouring it down drains, onto the ground, or in regular trash harms the environment and violates local regulations. Always store used oil in clean containers, and transport it safely to authorized disposal locations. Many facilities also accept used oil filters, making it convenient to dispose of all waste materials responsibly.

Mistake 8: Ignoring the Oil Filter Gasket

The rubber gasket on your new oil filter must be properly lubricated and positioned to prevent leaks. Failing to apply a thin layer of new oil to the gasket can cause it to bind or leak. Hand-tighten the filter until the gasket contacts the mounting surface, then turn an additional 3/4 turn. Avoid using filter wrenches for installation, as over-tightening can damage the gasket and make removal difficult.

Mistake 9: Not Checking the Oil Level After the Change

Always verify the oil level after completing your change and running the engine briefly. This ensures you’ve added the correct amount and identifies any potential leaks immediately. Run the engine for a few minutes, turn it off, and wait 5 to 10 minutes for the oil to settle before checking the level. If the level is low, add small amounts until it reaches the proper range. Document the total amount you use for future reference and to identify any consumption issues.

Mistake 10: Neglecting Regular Oil Changes

Perhaps the most critical mistake is simply waiting too long between oil changes. Oil degrades over time, losing its ability to lubricate, clean, and protect your engine effectively. On top of that, regular short trips, extreme temperatures, and stop-and-go traffic require more frequent changes than normal driving.

Modern oils last longer than older formulations, but neglecting regular changes remains the fastest way to damage your engine. Establish a maintenance schedule, and stick to it religiously. Your owner’s manual provides specific intervals for different driving conditions.

Why Choose AMSOIL for Your Next Oil Change?

AMSOIL synthetic motor oils offer superior protection and extended drain intervals compared to conventional oils. Their advanced formulations resist breakdown under extreme conditions and provide excellent wear protection. Their synthetic oils maintain viscosity stability across wide temperature ranges, ensuring consistent protection year-round.

AMSOIL products undergo rigorous testing to exceed industry standards and vehicle manufacturer requirements. For drivers seeking maximum engine protection and extended oil change intervals, AMSOIL is a premium choice that can reduce maintenance frequency while providing superior engine protection.

Protect Your Investment With Proper Oil Changes

Avoiding these 10 common mistakes when changing your oil will protect your engine and ensure reliable performance. Regular maintenance using the correct procedures and materials prevents costly repairs and extends your vehicle’s lifespan. Take time to understand your vehicle’s requirements, and never rush the process. With just a few extra minutes, you can save thousands in potential engine damage.

Are you in need of a reliable distributor for your lubrication needs? 1972oil has the latest AMSOIL products in stock, making it easier than ever to find what you’re looking for. With our auto oil filters, you’ll have peace of mind during your next oil change. Get ready to experience improved fuel efficiency!