How many quarts of transmission fluid does a Lexus LS430 take?
A Lexus LS430 typically requires about 9 to 10 quarts of automatic transmission fluid (ATF) for a standard drain-and-fill.
The LS430, produced from 2000 to 2006, uses a 5-speed automatic transmission and Dexron VI ATF. The exact amount depends on the service performed—draining only the pan, replacing the filter, or performing a full system flush that runs fluid through the cooler lines and torque converter. The figures below reflect common service scenarios to help plan maintenance and purchasing.
Capacity ranges for common services
What follows are the most common service scenarios and the approximate ATF quantities involved for the LS430.
- Drain-and-fill (pan drain, no flush): about 8 to 9 quarts. This is the standard service when changing ATF without a system flush.
- Partial flush (pan drain plus a couple of passes through the cooler lines): about 9 to 10 quarts total, depending on the vehicle and procedure.
- Full transmission flush (complete system replacement): approximately 12 quarts, depending on method and equipment used by the shop.
Takeaway: most routine changes drain about 8–9 quarts from the pan; a full system flush can require around 12 quarts, so plan accordingly and use Dexron VI ATF as specified by Toyota/Lexus.
Practical guidance for owners
When performing maintenance, confirm the exact capacity for your model year and service method. If you replace the transmission filter during a pan drop, factor in the additional fluid required for thorough wetting of the new filter.
Summary
In summary, for a typical drain-and-fill on a Lexus LS430, expect to use about 9 to 10 quarts of Dexron VI ATF. For a full flush, budget roughly 12 quarts. Always consult the owner's manual or a Lexus service bulletin for your specific year and service type, and replace the transmission filter if applicable.
How much transmission fluid does a LS430 take?
Automatic Transmission Fluid
Capacity: 1.9 quarts Initial Fill.
What kind of transmission fluid does a 2004 Lexus LS430 take?
The correct transmission fluid for a 2004 Lexus LS430 is Toyota's World Standard (WS) fluid, which is compatible with six-speed transmissions. You can use genuine Toyota ATF WS fluid or a high-quality, synthetic aftermarket fluid that specifically meets the WS specification.
This video demonstrates the process of changing the transmission fluid in a 2005 Lexus LS430: 59sNevadaRobertYouTube · Dec 19, 2023
Key takeaways
- Fluid type: Toyota World Standard (WS).
- Genuine option: You can purchase genuine Toyota WS fluid, often labeled with part number 00289-ATFWS.
- Aftermarket options: Many aftermarket synthetic fluids are available that meet the WS standard, such as Aisin Type 0WS or Amsoil Signature Series Fuel-Efficient Synthetic Automatic Transmission Fluid. Always check the product label to ensure it is compatible with WS.
- How to identify your transmission type: Check the refill plug for "WS" stamped on it, or confirm with your owner's manual to be certain you have the six-speed transmission. Five-speed and older Lexus transmissions use a different fluid (Type T-IV).
How much is a transmission fluid change for a Lexus LS430?
The average cost for a Lexus LS430 Transmission Fluid Change is between $159 and $216. Labor costs are estimated between $122 and $179 while parts are typically priced around $37. This range does not include taxes and fees, and does not factor in your unique location.
How many quarts of transmission fluid do I need for a drain and fill?
For a standard transmission fluid drain and fill, you'll typically need 3 to 5 quarts, but you should always measure the amount you drained and refill with the same amount to start, then check the level using the dipstick after running the engine. The exact amount varies by vehicle, and it's crucial to check the owner's manual or look up specifications for your specific make and model, as a drain and fill will not replace all the old fluid.
How to determine the right amount
- Drain the old fluid: Let the old fluid drain completely.
- Measure the drained fluid: Measure how much fluid was drained. This is your starting point for refilling.
- Refill with the measured amount: Put the same amount of new, correct transmission fluid back into the transmission. Using a funnel can help with this process.
- Start the engine: Start the vehicle and let it run for a few minutes, shifting through all the gears (Park, Reverse, Neutral, Drive) while holding the brake. This circulates the new fluid.
- Check the level: Turn the engine off and check the fluid level with the dipstick. Add more fluid in small increments if the level is low, or drain a small amount if it's too high.
- Re-check: Repeat the process of running the engine and checking the dipstick until the fluid level is correct according to the dipstick's hash marks for a "hot" reading.
Important considerations
- A drain and fill is different from a full transmission flush, which requires significantly more fluid (10-12 quarts or more) because it aims to replace all the fluid, including what's in the torque converter.
- You should always use the specific type of transmission fluid recommended by your vehicle's manufacturer to avoid damage.
- Some vehicles, like certain Land Rovers, do not have a dipstick and require a fluid extractor to add new fluid. Consult your owner's manual to be certain.
