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.
Service Intervals & Specifications
1998 Lexus GS 300SECTION Service Intervals & Specifications
REPLACEMENT INTERVALS
| Component | Miles | |||||
|---|---|---|---|---|---|---|
| Accessory Drive Belts | (1) | |||||
| Air Filter | 30,000 | |||||
| Coolant | (2) | |||||
| Fuel Filter | 30,000 | |||||
| Oil & Filter | ||||||
| Normal Service | 7500 | |||||
| Severe Service | 3500 | |||||
| Spark Plugs | 60,000 | |||||
|
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BELT ADJUSTMENT
| Application | (1) Lbs. (kg) | |||||
|---|---|---|---|---|---|---|
| A/C | ||||||
| New | 139-191 (63-87) | |||||
| Used (2) | 99-121 (45-55) | |||||
| Generator | ||||||
| New | 170-180 (77-82) | |||||
| Used (2) | 95-135 (43-61) | |||||
| Power Steering | ||||||
| New | 150-185 (68-84) | |||||
| Used (2) | 95-135 (43-61) | |||||
|
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BELT ADJUSTMENT
| Application | Lbs. (kg) | ||
|---|---|---|---|
| GS300, LS400, SC300 & SC400 | (1) | ||
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RENDER: 1.0x
NO RELATED
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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.