Your engine oil is one of the most important fluids in your vehicle. It lubricates moving parts, regulates temperature, and prevents wear over time. But while most drivers understand the importance of getting regular oil changes, fewer realize that the amount of oil matters just as much as the type. Overfilling or underfilling your engine oil can lead to serious performance issues and even costly repairs. To help you avoid these mistakes, your trusted Lowell mechanic from Road Runner Auto Repair is here to share some tips.
The Risks of Overfilling Engine Oil
Too much of a good thing can be bad, and that applies to engine oil. When your engine is overfilled, the excess oil can become aerated as it gets whipped by moving parts. This foamy oil doesn’t lubricate as well, reducing its ability to protect your engine from heat and friction.
In more severe cases, overfilling can create extra pressure in the crankcase, leading to blown seals or gaskets. It may even cause oil to leak into places it shouldn’t, like the combustion chamber or your catalytic converter. That’s when you might start seeing smoke from your exhaust—or worse, smell burning oil.
The Dangers of Low Oil Levels
On the flip side, underfilling your engine can be just as damaging. If your oil level is too low, the remaining oil has to work harder and may not reach all the necessary parts. This lack of lubrication can lead to metal-on-metal contact, overheating, and accelerated engine wear.
In some cases, the oil pressure warning light may not come on until it’s too late. If you hear unusual ticking sounds, notice reduced performance, or see your engine temperature rise, it could be a sign that your oil level is dangerously low.
How to Get It Just Right
The best way to avoid oil level issues is to check your dipstick regularly and make sure you’re using the correct oil type and quantity for your specific vehicle. If you’re topping off oil between changes, always consult your owner’s manual and avoid guesswork. And if you’re doing your own oil changes at home, be careful to add the manufacturer-recommended amount and check levels after the engine has run for a few minutes.
Road Runner Auto Repair | Lowell Mechanic
Not sure if your oil level is where it should be? Don’t leave it to chance. At our shop, our Lowell mechanic will make sure every oil change is done right, using the correct oil type and amount for your vehicle. We’ll also inspect your engine for signs of leaks or damage. Stop by or schedule an appointment today for a professional oil change you can trust.