RX300 Transmission Fluid Capacity: A Guide to Maintaining Your Lexus

Understanding the RX300 Transmission Fluid Capacity

If you’re a proud owner of a Lexus RX300, it’s essential to keep your vehicle’s transmission in top-notch condition. One crucial aspect of transmission maintenance is ensuring that you have the correct amount of transmission fluid. In this article, we will dive into the RX300 transmission fluid capacity, providing you with the information you need to keep your vehicle running smoothly.

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Transmission Fluid Capacity and Type

To determine the transmission fluid capacity for your RX300, you need to consider the model year and whether you have a front-wheel drive (FWD) or all-wheel drive (AWD) version. Here’s a breakdown of the transmission fluid capacity for different RX300 models:

Model Year Transmission Fluid Capacity (Quarts) Transmission Fluid Capacity (Liters)
1999 – 2000 9.1 8.6
2001 – 2003 (FWD) 9.2 8.7
2001 – 2003 (AWD) 9.5 9.0
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It’s crucial to use the correct type of transmission fluid for your RX300. Lexus recommends using Toyota Type T-IV automatic transmission fluid. Using the wrong type of fluid can lead to transmission damage and costly repairs, so make sure to double-check before adding any fluid.

Checking and Adding Transmission Fluid

To check the transmission fluid level in your RX300, follow these steps:

  1. Park your vehicle on a level surface and engage the parking brake.
  2. Start the engine and let it idle for a few minutes to warm up the transmission.
  3. Locate the transmission dipstick, which is usually labeled and located near the back of the engine bay.
  4. Remove the dipstick, wipe it clean with a lint-free cloth, and reinsert it fully.
  5. Remove the dipstick again and check the fluid level. It should be within the “Hot” range.
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If the fluid level is low, you can add transmission fluid using a funnel. Be cautious not to overfill, as it can cause damage to the transmission. Add fluid gradually, checking the level with the dipstick as you go.


Maintaining the proper transmission fluid level is crucial for the longevity and performance of your RX300. By understanding the transmission fluid capacity and following the recommended guidelines, you can ensure that your vehicle’s transmission stays in optimal condition. Remember, using the correct type of fluid and checking the level regularly will keep your RX300 running smoothly for miles to come.


What Color Should Transmission Fluid Be?

What Color Should Transmission Fluid Be?

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