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 MANUALSSUBARU1998FORESTER L, STANDARDREPAIR AND DIAGNOSISMAINTENANCEPROCEDURESMAINTENANCE INFORMATIONLUBRICATION SPECIFICATIONS

1998 Subaru Forester L, Standard

Lubrication Specifications

1998 Subaru Forester L, StandardSECTION Lubrication Specifications

LUBRICATION SPECIFICATIONS

Material

Condition

Specification

Engine Oil ⁽¹⁾

Ambient Temperature Less Than 0°F (-18°C) To 100°F (38°C)

SAE 5W-30

Engine Oil ⁽¹⁾

Ambient Temperature Above 0°F (-18°C) To Over 100°F (38°C)

SAE 10W-30

Engine Coolant

All

50/50 Mixture of Distilled Water & Ethylene Glycol

Power Steering Fluid

All

Dexron II, Dexron IIE, Or Dexron III Type ATF

Brake Fluid

All

DOT 3 Or DOT 4

Clutch Fluid

All

DOT 3 Or DOT 4

Automatic Transmission Fluid

All

Dexron II or Dexron III

Transmission Oil

All

API Classification GL-5 ⁽²⁾

Front Differential Gear Oil (Automatic Transmission)

All

API Classification GL-5 ⁽²⁾

Rear Differential Gear Oil (AWD Vehicles)

All

API Classification GL-5 ⁽²⁾

⁽¹⁾	SAE 5W-30 is highly preferred for all models.

⁽²⁾

SAE 90 may be used if temperatures are 30°F (0°C) to over 100°F (38°C). SAE 85W may be used if temperature are 20°F (-30°C) to over 100°F (38°C). SAE 80W may be used if temperatures are below -30°F (-34°C) to 90°F (32°C). SAE 80W-90 may be used if temperatures are below 30°F (-34°C) to over 100°F (38°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.