Engine oil and filter
Match both the oil grade and specification to this engine. Check the refill conditions before buying oil, then use the dipstick to confirm the final level.
VerifiedProduct compatibility review in progress2021 Honda Civic / 5Dr · Manual 6-speed · 4 cyl · 2.0 L · Turbo
Owner maintenance and common replacements
Factory intervals, fitment limits, tools, fluids, torque information, and common home-service searches.
← Back to specificationsConfiguration-specific service and fitment facts
These sourced values are shared by the specification sheet and the maintenance guides for this exact configuration.
- Engine oil viscosity
- SAE 0W-20 Verified
- Engine oil specification
- Premium-grade detergent engine oil bearing the API Certification Seal Verified
- Engine oil refill with filter
- 5.7 US qt VerifiedPublished as 5.7 US qt (5.4 L); verify final level with the dipstick after service.
- Engine oil refill without filter
- 5.3 US qt Verified
- Oil drain plug torque
- 30 lb-ft Verified
- Coolant specification
- Honda Long Life Antifreeze/Coolant Type 2, premixed 50/50 Verified
- Brake fluid
- Honda Heavy Duty Brake Fluid DOT3 Verified
- Spark plug specification
- NGK ILZKAR8H8S Verified
- Manual transmission fluid
- Honda MTF Verified
- Manual transmission refill
- 2.3 US qt Verified
- Original tire pressure, front
- 35 psi VerifiedThe manual gives 35 psi (240 kPa) front and 33 psi (230 kPa) rear for both listed original 2.0 L wheel options,18-inch and 20-inch. Confirm actual fitment and door label; modified tires/wheels require separate review.
- Original tire pressure, rear
- 33 psi VerifiedThe manual gives 35 psi (240 kPa) front and 33 psi (230 kPa) rear for both listed original 2.0 L wheel options,18-inch and 20-inch. Confirm actual fitment and door label; modified tires/wheels require separate review.
- Original tire load and speed specification
- Conditional original equipment:235/40 R 18 95 Y with 2.0 L 18-inch wheels;245/30 ZR 20 90 Y with 20-inch wheels. Exact installed option must be confirmed. Verified
- Oil filter applications
- WIX 57356 VerifiedReviewed only for the eight explicitly assigned 2021 Civic sedan, hatchback and Type R configurations with their recorded engines and transmissions. The Type R match comes from its separate K20C1 row. WIX displacement labels are retained as printed and do not change Honda displacement. Use one standard 57356 filter and follow Honda service intervals.
Brake fluid and inspection
Check the reservoir and inspect any low level, warning light or changed pedal feel before driving. Repeated topping-up is not a repair.
VerifiedCabin air filter
Check reduced ventilation airflow and inspect the cabin filter where fitted. Follow the year-specific instructions for access and installation direction.
VerifiedEngine air filter
Inspect the filter housing and replace the element on the applicable schedule, sooner in dusty use when the manual requires it.
VerifiedEngine coolant
Check the reservoir level with the engine cold and investigate repeated coolant loss. Coolant type and replacement procedure matter as much as capacity.
VerifiedManual transmission fluid
Match the fluid to the exact transmission, not just the vehicle model. A drain-and-refill amount differs from the total dry capacity.
VerifiedScheduled chassis and owner inspections
Follow the exact model-year schedule and its special-use conditions. Inspect worn or damaged components and use the applicable service procedure for repairs.
VerifiedSpark plugs
Use the engine-specific plug type. Check the service schedule and inspect ignition faults before replacing parts.
VerifiedTires and rotation
Check cold pressures, tread wear and damage. Use the vehicle placard for the fitted tire size and load rather than the tire sidewall maximum.
Verified