The transmission fluid in your Lexus GS 350 is essential for keeping your car running smoothly and efficiently. It lubricates the moving parts of the transmission, helps to cool the system, and prevents the accumulation of harmful deposits. Over time, transmission fluid can become contaminated with dirt, metal shavings, and other debris, which can cause your car to shift gears roughly, hesitate, or even stall. That's why it's important to have the transmission fluid changed regularly, as recommended by Lexus.
The recommended transmission fluid change interval for the Lexus GS 350 is every 60,000 miles or 5 years, whichever comes first. If you do a lot of stop-and-go driving or towing, you may want to change the transmission fluid more frequently, every 30,000 miles or 3 years.