Honda Civic Si Fluid Specifications
Verified fluid grades and capacities for your car. (1990–2026)
Capacities
| Specification | Value |
|---|---|
| Radiator |
Coolant capacity (includes engine, heater, hoses, and reservoir)
Engine overhaul |
| Reservoir | Coolant capacity |
Fluid Types & Grades
| Specification | Value |
|---|---|
| Engine |
Lubrication system
Forced, wet sump, with trochoid pum |
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