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 progress1990 Honda Civic / Wagon 4WD · Automatic 4-speed · 4 cyl · 1.6 L
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 5W-30 recommended for fuel economy; follow the manual’s ambient-temperature chart. VerifiedThe 1990 manual’s original specification; a present-day substitute requires separate verified compatibility.
- Engine oil specification
- Premium-quality detergent engine oil, API SG. VerifiedThe 1990 manual’s original specification; a present-day substitute requires separate verified compatibility.
- Engine oil refill with filter
- 3.7 US qt VerifiedOil-and-filter change: 3.5 L (3.7 US qt, 3.1 Imp qt). Confirm the dipstick level; this is not dry-engine capacity.
- Coolant specification
- Honda-recommended antifreeze/coolant for aluminum engines, mixed 50/50 with low-mineral or distilled water; do not mix different coolants. VerifiedThe 1990 manual’s original specification; a present-day substitute requires separate verified compatibility.
- Brake fluid
- DOT 3 or DOT 4 brake fluid from a sealed container; check the reservoir-cap specification. Verified
- Spark plug specification
- Normal driving: NGK BCPR6E-11 or BCPR6EY-N11, or ND Q20PR-U11. Hot climates / continuous high-speed driving: NGK BCPR7E-11 or BCPR7EY-11, or ND Q22PR-U11. VerifiedThe 1990 manual’s original specification; a present-day substitute requires separate verified compatibility.
- Spark plug gap
- 0.043 in VerifiedManual specification: 1.1 mm (0.04 in); use the specified plug heat range and installation procedure.
- Automatic transmission fluid
- Original manual: DEXRON II automatic transmission fluid. VerifiedThe 1990 manual’s original specification; a present-day substitute requires separate verified compatibility.
- Automatic transmission drain and refill
- 3.4 US qt VerifiedRoutine change 3.2 L, not total dry capacity. Check the dipstick with the engine off and vehicle level; do not overfill.
- Power steering fluid
- Genuine Honda power-steering fluid only; do not use ATF or another manufacturer’s power-steering fluid. Verified
- Rear differential capacity (owner reference)
- 0.7 US qt Verified4WD only; routine change 0.65 L (0.69 US qt, 0.57 Imp qt), not total capacity. Check level at the filler opening on level ground with engine off.
- Rear differential oil specification
- Original manual: hypoid gear oil API GL-5, SAE 90 above 5°C (41°F) or SAE 80 below 5°C (41°F). VerifiedThe 1990 manual’s original specification; a present-day substitute requires separate verified compatibility.
Automatic 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.
VerifiedBrake 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.
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
Follow the original wagon coolant specification and bleeding procedure. Never open the hot radiator cap. Refill numbers differ between the procedure and capacity table, so numeric capacity remains held.
VerifiedRear differential oil
Owner-table capacity reference; not a verified drain/refill procedure. Confirm the actual AWD system and use its specified oil.
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.
VerifiedTiming belt and water-pump inspection
Track belt replacement by both age and mileage. This is an engine-specific workshop job, not a generic belt replacement procedure.
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