Skip the auto shop - Our mechanics make house calls

Q: Please what gear oil is best for my Hyundai sonata 2005.

asked by on

My gear oil is due for change but I don't know the best oil for it. My car is Hyundai sonata 2005

My car has 150000 miles.
My car has an automatic transmission.

As you may know, there are a multitude of engine oils on the market all claiming to be the "best" and prolonging the life of your car’s engine. One of the main questions you will be asked when changing your oil is whether or not you want a conventional oil or a synthetic oil. Synthetic vs conventional oil is one of the most debated myths surrounding the topic of oil changes. Contrary to popular belief, it will not hurt your engine when switching from synthetic to conventional or vice versa. In fact, Synthetic blend oils are actually a mix of conventional oils and synthetic oils. It is recommended that you use the same oil to top off when needed, giving you the best protection from the oil you have chosen to use in your vehicle.

Many synthetic oils are made up of a base oil of approximately 80%, with other additives making up the remaining 20%. The main difference between the molecules in synthetically engineered oils and conventional oils are the uniformity of the molecules. The molecules found in most conventional oils differ in shape, size and impurity. The type of oil that should be used for a specific application depends largely on the driver’s driving habits, the environment in which the car is driven, the mileage on the car’s engine and the limits that the engine may be pushed to. I would recommend having an expert from Your Mechanic come to your home to perform an oil change service on your car to determine the best option for your vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: The clutch on my ac compresser is leaking out really thick black tar like stuff when it is spinning. What is it? And why is it doi

Hello, thank you for writing in. A black goo coming from the air conditioning compressor is more commonly known as "black death". It occurs when the refrigerant in the air system breaks down and is no longer the chemical it...

Q: CD is stuck in the CD player

The CD player is multi-disc capable and has a motor inside to shuttle the discs in and out. If a disc or mechanism is stuck your radio will need to be replaced. You may be able to get it removed...

Q: Oil pressure fluctuating and clicking noise from engine.

Hi there. The noise seems to be a lifter tap. Either a lifter is stuck or there is no oil to the lifter causing the rocker arm to tap and creating the noise you are hearing. Try putting one quart...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.