4 Best Transmission Fluid for RSX Type S: Update 2024

Reviewed By: Joses Peter

Experiencing rapid up and downshifts, high RPM increases before shifting, unusual grinding noises, and irregular shifts are all aggravating qualities that you have experienced.

This indicates that you are low on the transmission fluid and risk overheating your vehicle.

So, take a closer look at how the transmission system operates and performs. Then, you can see that transmission fluid is a vital part of the system’s function and overall performance.

Best Transmission Fluid for RSX type S

In addition to lubricating mechanical parts and regulating fluid pressure, it is also responsible for cooling, protecting against oxidation, conditioning the gasket, and keeping rust at bay.

I’ve looked into and tested more than 25 different selections from the shop. Finally, after much deliberation, I’ve compiled a list of the four best transmission fluid for RSX Type S for your consideration.

There are many things to consider, and it’s easy to become bogged down in the details of the concept.

Here, I’ve filtered down the arrows and only show you the ones that have received the highest ratings.

However, you are under no need to accept our word for it. Please read over each one individually so that you are aware of the contents of your package.

If you’re still perplexed after reading through the top 5, you can always turn to the buying guide for more information.

As soon as you’re ready, let’s go right into things.

Quick Comparison of Top 4 RSX Type S Transmission Fluid

Red Line (50305) Manual Transmission (MT) 90W Gear Oil
★ OUR #1 PICK! ★
Red Line (50305) Manual Transmission (MT) 90W Gear Oil
  • Size: 1-Gallon
  • Type: Manual Transmission Fluid
  • Compatibility: Recommended for GL-1, GL-3, and GL-4 applications, as well as where most special synchromesh fluids are specified.
  • Country of Origin: USA
Genuine Honda Fluid 08798-9031 Manual Transmission Fluid
Genuine Honda Fluid 08798-9031 Manual Transmission Fluid
  • Size: 1-Quart
  • Type: Manual Transmission Fluid
  • Compatibility: Genuine OEM Honda fluid.
  • Country of Origin: USA
Amsoil Signature Series 5W-30 Synthetic Motor Oil
Amsoil Signature Series 5W-30 Synthetic Motor Oil
  • Size: 1-Gallon
  • Type: Synthetic Motor Oil
  • Compatibility: Share Chrysler M2 Degree C929 a MS 6395, FORD WSS, FORD WSS M2 Degree C946 a, GM dexos1.
  • Country of Origin: USA
Royal Purple 01512 Synchromax Manual Transmission Fluid
Royal Purple 01512 Synchromax Manual Transmission Fluid
  • Size: 1-Quart
  • Type: Dual Clutch Transmission Fluid
  • Compatibility: BMW 83 220 440214, Ford M2C 936A, MB 236.21, MB 236.25, Volvo 1161838, Volvo 1161839, VW G 052 182.
  • Country of Origin: USA

What Are The Best Transmission Fluid for RSX type S

Red Line (50305) Manual Transmission (MT) 90W Gear Oil

Red Line (50305) Manual Transmission (MT) 90W Gear Oil

Red Line 50305 Transmission fluid was our first product, and it was introduced with it. It is a highly effective product, which is why I have placed it at the top of our list.

You don’t believe what I’m saying. Let us demonstrate this with a logical description-

Starting off, the performance of the product is the first thing to note about it. Here, the Gear protection provides more wonderful synchro life. And, it’s recommended for use in GL-1, GL-3, and GL-4 applications and applications where the majority of special synchromesh fluids are required.

Moreover, it provides superior gear and synchro protection and balanced friction control. Even in chilly climates, moving is made easier due to the slipperiness.

After that, the GL-4 Gear Oil is depleted of sulfur, and the GL-5 Gear Oil causes harm to the engine.

Consequently, you can use the product with confidence and without any reservations.

It has been doing correctly for a long time, and there are no problems with this product. It’s also appropriate for critical road vehicles. The product weighs only 7 pounds and has 7.5 × 4 × 11.25 inches in length, width, and height.

What I Like

  • The transitions are silky seamless.
  • Quality is outstanding.
  • Providing high-quality service.
  • It has been substantially altered.
  • It’s a lot easier to use.

What I Don’t Like

  • When it’s freezing outside, you have to work slowly.

Genuine Honda Fluid 08798-9031 Manual Transmission Fluid

Genuine Honda Fluid 08798-9031 Manual Transmission Fluid

Then I’m going into the details of our following product, Honda manual fluid, which comes after the first. Likewise, Holda 08798-9031 is a top-quality product. I’ll go into the specifics of the product-

The first thing you’ll notice about the Honda is its shift mechanism. The shift quality is excellent, and everything is going well. The change is also amazing in terms of quality.

The product has the following measurements: 6.858 L x 22.352 L x 10.922 W cm. Even though it is only one pound in weight, it gives a high level of quality for the car. It is one of the best RSX type S transmission fluids.

The formula of this product is of high quality, and the user who purchases it for their personal use will be pleased with the results of their purchase. It also has a reduced fluid friction coefficient.

What I Like

  • This fluid performs admirably.
  • Excellent shifter build quality
  • Using it pretty smoothly is a must.
  • It has a distinct fragrance of gear grease.
  • Reduce transmission maintenance costs.

What I Don’t Like

  • A bit expensive.

Amsoil Signature Series 5W-30 Synthetic Motor Oil

Amsoil ATF Signature Series

After discussing the two products that came before it, another fantastic fluid called Amsoil Signature Series 5W-30. It has both good and bad sites, which I’ll go over in greater detail later.

Originating in the United States, this product is still manufactured there today. Consequently, the product’s quality is excellent, and it is synthetic high tech. This means it gives adequate engine protection.

The cleanliness of the product is improved, and the best engine reduces the need for maintenance. It is acceptable for use with a gasoline engine, and the quality is superior to that of other similar products.

Even though it weighs only 7.52 pounds, the product has impressive dimensions of inches. Moreover, it is built with the Amsoil brand and the signature series synthetic motor oil.

What I Like

  • Engine noise should be reduced.
  • Increased RPMs in a shorter period.
  • Completely synthetic oil.
  • Fluid is an outstanding performer.
  • Keep the transmission healthy.

What I Don’t Like

  • The actual product is different from the advertisements.

Royal Purple 01512 Synchromax Manual Transmission Fluid

Royal Purple Synchromax ROY01512 MTF

Royal Purple 01512 is the last item on our list. I talked about the greatest three. Mentioning them this is likewise an excellent product. There are some reasons to make the product better than others.

Let’s discuss this-

It is recommended for manual Trans fluid and automatic transmission fluid or motor oil. So, you can apply it to your vehicle for improved performance. The item contains 12 pounds, and it has 32 fluid ounces.

After that, the product is perfect for a 4×4 transfer case. It is also usable for the two-cycle product, and the oil is synthetic to use. The shift quality is also the best in quality.

Then, Royal Purple has the temperature range shift quality. It functions effectively in the winter season and also in the hot season and minimizes the oil noises. It is entirely compatible with all forms of friction material. It has outstanding oxidation quality.

What I Like

  • Shifting is effortless.
  • Quality is commendable.
  • Noises are reduced.
  • Working in a hot environment is a problem.
  • The oil is entirely synthetic.

What I Don’t Like

  • Sometimes shifting has some issues.

How to Choose The Best Transmission Fluid for RSX type S

If you’ll excuse the pun, the market for automatic gear fluid (ATF) has just gotten saturated. Type F for Blue Oval competitors and GM’s Dexron for everybody used to be the sole possibilities.

In today’s market, Ford offers 7 distinct automatic gearbox oils. When you add in Dexron III and VI, Chrysler’s +3 and +4 fluids, as well as a dozen or more oil companies offering their own version of these fluids, the complexity skyrockets.

Here, the OE’s quest for better fuel economy is what sparked this explosion of boutique fluids. Each automobile manufacturer has developed its proprietary lubricant to meet an ever-narrower set of specifications.

When you add in the increasing number of gears and numerous types of automatic transmissions, such as variable frequency transmissions that require a specialized fluid, you end up with an ATF maze.

Many statements that these new fluids are backward compatible add to the uncertainty. The bad news is that this isn’t always the case. Let’s look at some particular points to demonstrate how difficult this can be-

Consider the GM 4L60E automatic transmission in a 2000 Camaro or Corvette. Although Dexron VI is frequently cited as the proper fill, Dexron VI did not become available until 2005, implying that this transmission was initially filled with Dexron III.

This isn’t a significant issue because Dexron VI will undoubtedly work. With Speed’s help, you discovered that Dexron VI is a better fluid in many ways, such as having a more stable viscosity at higher temperatures.

Again, it’s also a popular viscosity fluid, which is really the objective now in the drive for greater fuel economy. It is also done to meet the expectations placed on automakers for CAFE regulations.

As a result, Dexron VI looks to be backward compatible with previous TH350 and TH400 gearboxes. In truth, Dex VI is only suitable for modern vehicles.

According to Speed, he tried Dexron VI in an older car initially designed for Dexron III. He discovered that the converter’s stall speed rose somewhat, which is expected considering Dexron VI’s lower viscosity.

For some applications, this may be useful, but not for others.

The modern fluids aren’t always a good match for older three-speed cars from the 1960s. Here, the fluids with extra friction modifiers additives are explicitly produced in 21st-century automatics to lessen clutch engagement.

These newer transmissions’ clutch packages are designed to work with these more unique fluids. Here, the previous performance gearboxes, such as the TH350 and TH400, the Torqueflite 727 and 904, or the Ford C4 and C6, will not work as well with these altered fluids.

Speed recommended using the year 2000 as a type of crossroad or watershed thing to make an order of it all.

For transmissions produced after this calendar date, the goal is to employ the most contemporary ATF. Consider utilizing a more traditional fluid in automatics developed before the century.

The RSX came with a 5-speed manual or a 5-speed automatic transmission with Quick SportShift and Grade Control Loop. Here, the Type-S fits with a 200 horsepower (149 kW) K20A2 engine from 2002 to 2004.

I’ve learned the basics of an automatic gearbox and the fluid which keeps it functioning. It’s now time to determine which type of Acura RSX ATF type is best for your car.

You want parts and goods from recognized companies when it comes to your Acura RSX Type-S Tranny fluid.

These days, there are a variety of ATFs available, each designed for a specific type of transmission. The most common types are Dexron/Mercon and Multi-Vehicle Synthetic.

Because the transmission is one of the most complicated systems in a car, it’s critical to use the right ATF to work to protect performance. The most common ATF types and how they operate are listed below-

ATF+4 / Dexron VI (GM) / Mercon V (Ford) (Chrysler)

The three most common ATF things are formulated and licensed only by GM, Ford, and Chrysler, the three largest automakers in North America (now FCA).

These ATF fluids are designed to work with the most up-to-date transmission technologies available. Furthermore, these fluids can be used in various imported vehicles (always consult your follow the manufacturer for specific recommendations).

To reduce the friction in lubricated parts, all three use friction modifiers.

Synthetic Transmission Fluid for Multi-Vehicle

Fluids for multi-vehicle transmissions are becoming increasingly popular in the marketplace. According to oil marketers, these fluids are designed for a wide range of automatic gearbox types.

They are meant to improve performance and maximum protection, even though any single auto manufacturer does not license them. They’re created with other cutting-edge technology, and the results are typically backed up by extensive field testing.

Here, the majority of the Trans fluids contain synthetic base oils. To enhance fuel efficiency, a growing number of vehicle makers are using continuously variable gearboxes in their new vehicle offerings, with 20% of all new cars sold utilizing this technology.

And, yes, the fluid needs for CVT transmissions are substantially different from standard stepped gear transmission.

Although each CVT fluid is intended for a different transmission, oil manufacturers have demonstrated that a single CVT oil may work in several transmissions.

The bulk of CVT gearbox fluids is made with synthetic base oils. It would help if you used the proper fluid to get the most power and mileage out of your vehicle. Always refer to your owner’s handbook to determine what kind of fluid the manufacturer recommends for your car.

To boost efficiency and durability to heat, corrosion, cold, friction, and shearing, most gearbox fluids, but not all, are blended with full synthetic oils.

So, check the bottle or the product details sheet online before buying something to see what’s inside. Once you’ve established which type of transmission fluid is ideal for your vehicle, see How to Replace Transmission Fluid.

How And When to Change RSX type S Transmission Fluid?

It’s important to maintain your transmission based on how you drive your vehicle. If you drive your automobile on a daily basis, changing the oil every two to three years is sufficient.

The transmission should be maintained either once-twice a year if it is subjected to normal track activity and is driven aggressively. When you replace transmissions, you could tell whenever the oil has been changed regularly because the components are cleaner or have less overall wear.

The only metallic pieces in a gearbox are the gears and bearings; the manual transmission has no filter, simply a grabber there at the bottom to pick up metals in the oil. Transmissions are not cheap, but oil is.


What is Automatic transmission fluid?

ATF is a kind of fluid in use in vehicles with automated or self-shifting transmissions. The fluid is tailored to a transmission’s specific requirements, such as valve, brake bands, friction, gear lubrication, and torque converter operation.

What does automatic transmission fluid do?

When it relates to the transmission system’s functions, Trans fluid is a critical component of the system’s overall performance. It’s in control of lubrication mechanical components, maintaining hydrostatic flow, cooling, preventing oxidation, conditioning gaskets, and preventing rust.

What happens if the automatic transmission fluid is low?

Your car’s system pressure is lowered when the transmission fluid levels are too low, resulting in shift slippage. A common indication of gear slippage is the inability to accelerate properly. If your fluid is low, you may notice your vehicle spinning at high RPMs even when driving slowly.

Are automatic transmission fluids and oil?

Manual shift oil is used in gearboxes where the clutches and shifts are being used between gear shifts. Automatic gearbox fluid is exclusively used in automatic transmissions.

Final Words

That was all I had for the best transmission fluid for RSX type S. You must have done your homework and made your selection by now. And I genuinely hope you choose one of the things I recommended.

However, if you haven’t chosen your fluid yet, undertake some more study. In any case, you’re entrusting the problem to your expert hands. You already know what you should do. Best regards!

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