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 MANUALSHONDA2005CIVIC SI L4-2.0LREPAIR AND DIAGNOSISSPECIFICATIONSFLUID TYPE SPECIFICATIONSENGINE OIL
2005 Honda Civic Si L4-2.0L
Engine Oil
2005 Honda Civic Si L4-2.0LSECTION Engine Oil
New standard for engine oil, GF-4. See TSB SN050109 for Honda Service News 050109 for additional information.
Engine Oil
API Classification Make sure the label says "For Gasoline Engines".
SAE Viscosity 5W-20
RENDER: 1.0x
NO RELATED
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Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.