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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1 (SPECIFICATIONS)SPECIFICATIONSCOOLING SYSTEM SPECIFICATIONS
1998 Lexus SC 300
Cooling System Specifications
1998 Lexus SC 300SECTION Cooling System Specifications
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2000 Lexus SC 400, 2000 Lexus SC 300, 2000 Lexus RX 300, 2000 Lexus LX 470, and 2000 Lexus LS 400. However, it is still accessible from the selected car via links, so may be relevant.
COOLING SYSTEM SPECIFICATIONS
| Application | Specification | ||||||
|---|---|---|---|---|---|---|---|
| Coolant Replacement Interval | (1) | ||||||
| Coolant Capacity (2) | |||||||
| ES300 | 9.7 Qts. (9.2L) | ||||||
| GS300 | 8.1 Qts. (7.7L) | ||||||
| GS400 | 9.8 Qts. (9.3L) | ||||||
| LS400 & SC400 | 11.6 Qts. (11.0L) | ||||||
| LX470 | |||||||
| With Front Heater | 15.6 Qts. (14.8L) | ||||||
| With Front & Rear Heater | 16.3 Qts. (15.3L) | ||||||
| RX 300 | 9.5 Qts. (9.0L) | ||||||
| SC300 | 9 Qts. (8.5L) | ||||||
| Radiator Cap | |||||||
| Standard Pressure | 17.8 psi | ||||||
| Minimum Pressure | 11.4 | ||||||
| Thermostat Opening Temperature | 176-183°F (80-84°C) | ||||||
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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.