How much is a transmission fluid change for a Lexus GS350?
A typical drain-and-fill costs about $150–$250 at an independent shop, while a dealership often charges $250–$350. A full transmission fluid flush generally runs $250–$400 at an independent shop or $500–$800 at a dealership. Prices can vary by year, service type, and location.
Understanding the question in more depth, the Lexus GS350 uses a six‑speed automatic transmission that can require different services (drain-and-fill vs. flush) and Fluid types, which influences final pricing. Labor rates, fluid costs, and any extra tasks (pan gasket replacement, filter service if applicable, or diagnostic checks) also affect the total. Read on for a breakdown of typical costs and what factors drive them.
Service options
Below are common ways shops bill for transmission fluid changes. The prices reflect typical ranges you may see in the United States, though exact quotes will vary by location and shop.
- Drain-and-fill (independent shop): approximately $150–$250
- Drain-and-fill (dealer): approximately $250–$350
- Full transmission fluid flush (independent shop): approximately $250–$400
- Full transmission fluid flush (dealer): approximately $500–$800
Prices listed above cover basic service and fluid replacement. Some shops may charge extra for fluid disposal, shop supplies, or a basic inspection of the transmission system.
What influences price
Several factors can push the final bill higher or lower. Being aware of them helps you get a precise quote before service.
- Year and specific GS350 variant (service procedures can differ slightly between model years)
- Type of service chosen (drain-and-fill vs. full flush)
- Fluid specification used (Toyota WS vs. Dexron VI compatibility; synthetic vs. conventional)
- Labor rate and local market conditions (city vs. rural areas)
- Additional tasks (pan gasket replacement, transmission filter service if applicable, diagnostic checks)
For a firm estimate, ask the shop to itemize the quote and confirm the exact ATF specification required for your GS350, as well as whether any additional parts will be used or needed during the service.
What to know about the GS350 transmission fluid
The Lexus GS350’s automatic transmission has a total capacity of roughly 11–12 quarts. A drain-and-fill typically changes a portion of that fluid (often around 4–6 quarts), while a full flush aims to replace most or all of the transmission fluid. The fluid used is typically Toyota WS (World Standard) ATF or a Dexron VI-compatible equivalent, depending on the year and transmission variant. Fluid cost commonly ranges from about $6–$12 per quart, in addition to labor charges.
DIY considerations
Some enthusiasts consider doing a transmission fluid change themselves to save on labor costs, but this job demands proper tools, a vehicle lift or ramps, a reliable method to drain and fill accurately, and knowledge of ATF specifications. Mistakes can lead to transmission damage. If you’re not experienced with automotive fluid services, a professional service is generally the safer and more reliable option.
Summary
For a Lexus GS350, expect roughly $150–$250 for a drain-and-fill at an independent shop and $250–$350 at a dealer, or $250–$400 for a full flush at an independent shop and $500–$800 at a dealer. Final prices depend on the service type, transmission fluid specification, vehicle year, local labor rates, and any additional parts or services. Always request a detailed quote and confirm the ATF specification before proceeding. If you want, I can help you locate current quotes from shops near you.
