Mercon Sp Vs Lv: Which Transmission Fluid Should You Use?

When it comes to transmission fluids, Mercon is a renowned and popular choice. But they offer a few different choices and which is the right option for you depends on the type of vehicle you are using. Two of their closest options are Mercon Sp and LV. So, what is the difference between Mercon Sp Vs Lv?

Mercon LV is a premium transmission fluid with exceptional adaptability and a reduced viscosity, but Mercon SP has a viscosity that is even greater than LV. Additionally, Mercon LV is able to use any Ford transmissions, but Mercon SP is unable to and only has limited capabilities.

So, if you are confused about which transmission fluid you need to choose, you are in the right place. Today we will compare these two fluids in full detail. 

Overview of Mercon SP

Ford Motor Company recommends using Motorcraft Mercon SP in Ford, Lincoln, and Mercury cars that need the Mercon SP, a kind of high-quality lubricant. 

This product performs admirably with automatic gearboxes with electronic controls as well. Additionally, it guards against rust and corrosion.

Good Sides

  • It comes with a bittering agent, which makes removal easier
  • Gives wearers protection by preventing the growth of froth, muck, and gum.
  • Has high viscosity 
  • High thermal and oxidation resistance

Bad Sides

  • Limited use on specific models

Overview of Mercon LV

An OEM-approved lubricant, Mercon LV is a totally synthetic automatic transmission fluid. Excellent rust, heat, and shearing endurance are complemented by good thermal flexibility.

Furthermore, it increases the energy level of electronic transmissions. Additionally, it has cutting-edge additive technology, and this fluid consistently surpasses all Dexron VI or General Motor standards criteria.

Good Sides

  • Prevents engine aging 
  • It prevents engine damage from heat.
  • Easier to find leaks 
  • Excellent Protection From Abrasion And Wear

Bad Sides

  • It gets old too fast 

Mercon Sp Vs LV: Comparison Table

Down below, we will summarize all the common differences between these two transmission fluids. This will give you a better idea about them.

Mercon Sp Vs Lv
CriteriaMercon SpMercon Lv
Vehicle TypeGas powered onlyDiesel Powered/ Gas powered 
AdditivesMore friction modifiers No modifiers 

What are the Differences Between Mercon Sp Vs Lv?

By now, you already have an idea about the primary differences between these transmission fluids from Mercon. But before you make your final decision, it is essential to know about the differences in full detail, which we will discuss below.


The first difference we will talk about is the viscosity of the fluid. Viscosity is a measurement technique used for a fluid’s flow resistance. Compared to the Mercon Lv, the Mercan Sp has a higher viscosity. 

Therefore, the Lv will lubricate the sensitive portions of the machine more efficiently than the Sp because of its low viscosity. Low viscosity fluids are also made to minimize internal resistance loss, which lowers fuel usage.

The Mercon SP, however, offers superior coverage in severely cold conditions since it is thicker than the Mercon LV oil, which is thinner.


Additives for transmission fluid are designed to regain the fluid’s qualities, which are what give the fluid its suitable resistance properties, lubricating characteristics, and other advantages. 

As a result, the ingredients in these two types of transmission fluids vary. In comparison to Mercon LV, Mercon SP has more friction modifiers. As a result, Mercon SP can reduce clutch wear, but Mercon LV cannot.


Another important difference between these transmission fluids is their compatibility. You need to ensure that the transmission fluid you choose is compatible with your car. Mercon SP and LV are compatible with Ford engines.

However, it’s crucial to keep in mind that not all Ford transmissions work with Mercon SP. Only a few models are compatible with SP. Therefore, the Mercon LV is a better option if you want a more suitable transmission fluid.

Vehicle Type

Depending on whether your car is gas powered or diesel powered, the transmission fluid type also varies as different engines have different requirements. 

You can use either Mercon Lv or Mercon SP if your automobile has a gas-powered engine. However, you may only use LV transmission fluid if you are using a diesel engine and cannot use Mercon SP.


The budget also plays a crucial role in selecting the perfect transmission fluid for your car. When you compare the price of SP and Lv transmission fluid, then SP has less price point than the Mercon LV.

Mercon SP Or Mercon LV: Which One Should You Choose?

Now we come to our main question: which transmission fluid is better between Mercon SP and Mercon LV? Both of these fluids are made by the same manufacturers and offer many similar properties.

If you are looking for a transmission oil that comes with added additives for better performance, especially in cold weather, then the Mercon SP is a better choice. Additionally, it is resistant to corrosion, oxidation, and rust, making it a good option for car owners.

On the other hand, if you want thin transmission oil with a lower viscosity which offers better lubrication of your car parts, then the Mercon LV is a good choice. 


After reading our guide so far, it is common to have some questions popping around your head, and down below, we will try to answer all of these questions. 

What is Mercon SP used for?

This transmission fluid protects against damage and prevents the growth of foam, varnish, muck, gum, and gunk. Additionally, it offers resistance to rust and corrosion and is colored red to make leak detection easier.

Are Transmission Additives Important?

Your transmission issues will worsen with time, necessitating further fixes. Good additives will maintain the health of the transmission fluid and reduce the amount of wear on the components. You’ll ensure the longevity of your transmission and avoid costly future repairs.

How Often Should you Change the Transmission Oil?

Every 30,000 to 60,000 miles, you should replace your transmission fluid since oils degrade over time. You can make sure you change your transmission fluid appropriately by reading your car’s owner’s handbook or looking up manufacturer guidelines.

Can I go back to using conventional oil?

Yes, it is possible to go back to regular oil from synthetic oil, and it should cause no harm to your engine. But before doing this, ensure your engine is in excellent functioning order, and the conventional oil is of high quality.

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