Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Lexus GS 430FACTORY OEM SERVICE PROCEDURE
Quick Lookups: Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | 7.00 OZS. | 0.2 L | PAG 46 | S | |||
| Air Cond Refrigerant | 1.44 LBS. | 0.65 KG | R-134a | S | |||
| Automatic Transmission Fluid | Drain and Refill | 1.90 QTS. | 1.79 L | TOYOTA Genuine Automatic Transmission Fluid Type T IV (ATF JWS3309 or NWS6500) | As per TOYOTA TSB TC003-99, dated May 21, 1999, ATF Type T-IV now replaces other Type T fluids. Only ATF Type T can be mixed with Type T-IV fluid. ATF Type T-II and Type T-IV fluid must NOT be mixed. To prevent damage to transmission, determine which fluid type has been used. | S | |
| Brake Fluid | N/A | N/A | DOT 3 Brake Fluid | S | |||
| Differential Gear Oil | 1.42 QTS. | 1.34 L | API - GL-5 Hypoid Gear Oil, SAE 90W (Above 0Deg.F), SAE 80W or 80W-90 (Below 0Deg.F) | For vehicles with synthetic oil, use TOYOTA Genuine Differential Synthetic Gear Oil: API - GL-5 SAE 75W-90 or its equivalent. | S | ||
| Engine Coolant | 9.50 QTS. | 8.99 L | TOYOTA Super Long Life Coolant or equivalent | DO NOT use plain water alone. | S | ||
| Engine Oil | Drain and Refill,w/Filter | 5.50 QTS. | 5.2 L | API - SAE 5W-30 | API - SL "Energy-Conserving" or ILSAC multigrade engine oil. | S | |
| Engine Oil | Drain and Refill,w/o Filter | 5.20 QTS. | 4.92 L | API - SAE 5W-30 | API - SL "Energy-Conserving" or ILSAC multigrade engine oil. | S | |
| Fuel Tank | 19.80 GALS. | 74.95 L | S | ||||
| Power Steering Fluid | N/A | N/A | Automatic Transmission Fluid DEXRON II or III | S | |||
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.