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.
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HOMESERVICE MANUALSLEXUS1998SC 300REPAIR AND DIAGNOSIS (SINGLE PAGE)MAINTENANCEPROCEDURESMAINTENANCE INFORMATIONLUBRICATION SPECIFICATIONS
1998 Lexus SC 300
Lubrication Specifications
1998 Lexus SC 300SECTION Lubrication Specifications
LUBRICATION SPECIFICATIONS
| Material | Condition | Specification | ||
|---|---|---|---|---|
| Engine Oil (1) | Ambient Temperature From 100°F (38°C) To Over -20°F (-29°C) | SAE 5W-30 | ||
| Engine Oil (1) | Ambient Temperature From 0°F (-18°C) To Over 100°F (38°C) | SAE 10W-30 | ||
| Engine Coolant | All | 50/50 Mixture Distilled Water Ethylene Glycol | ||
| Power Steering Fluid | All | DEXRON II or III | ||
| Brake Fluid | All | SAE J1703 or DOT 3 | ||
| Clutch Fluid | All | SAE J1703 or DOT 3 | ||
| Automatic Transmission Fluid | All | DEXRON II or III | ||
| Manual Transmission Oil | All | SAE 75W-90 or 80W-90 | ||
| Differential Oil | Above -18°C (0°F) | SAE 90 | ||
| Differential Oil | Below -18°C (0°F) | SAE 80W or SAE 80W-90 | ||
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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.