Q: Can I use full synthetic oil in a 99 mercury Sable 3.0dohc

asked by on

Can I use full synthetic oil in a 99 mercury Sable 3.0dohc

My car has 166000 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.

The other question you will need to answer when changing your oil is the kind of viscosity your engine requires. Viscosity is the thickness of the oil at certain temperatures. Generally, when the weather is colder outside you will want a thinner oil to allow the oil to flow easier through the motor allowing it to properly lubricate parts. When the weather is hotter outside, you will want a thicker oil to prevent it from what is called “thermal breakdown” and to keep it layering the internal engine parts with the proper lubrication. 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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Can I use full synthetic oil in a 99 mercury Sable 3.0dohc

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: Passing gear

You should have the computer scanned and transmission linkage checked to see if the system has codes stored for transmission and shift linkage is not damaged and adjusted properly.

Q: My car won’t start in the morning sometimes, I put a new battery in it but when you jump it, it will start

Hi Nicholas. Thanks for sending your question today. There are several things that must all work together in order to start a car. So, without knowing the details about what specifically is happening when you attempt to start, it's hard...

Q: smashed bumper in front and hood alittle.

Have you noticed any symptoms so far while driving it? It could be unsafe depending on how severe it is, but I would really have to visually see it and check under the hood to make the call. You can...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.