Maintenance / 1990 Automatic 4-speed · 4 cyl · 1.5 L

Spark plugs

Use the engine-specific plug type. Check the service schedule and inspect ignition faults before replacing parts.

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IntervalReplace every 30,000 mi / 48,000 km or 24 months, whichever comes first.Verified

01 / Requirements

Configuration-specific service and fitment facts

These sourced values are shared by the specification sheet and the maintenance guides for this exact configuration.

Cylinders: 4 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-N11, 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.

Installation: Work on a cooled engine using the specified tightening procedure. Do not adjust a fine-wire plug gap unless its manufacturer explicitly permits it.

Source

FuelEconomy.gov model-year bulk vehicle records

Source ↗

Official bulk configuration, engine, transmission, drivetrain, fuel-economy, volume, and emissions records; the official record API is the bounded fallback.

United States, complete imported model years 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026Cylinders: FuelEconomy.gov vehicle record 6525, cylinders

1990 Honda Civic Hatchback/Sedan Owner’s Manual — SI9090O00082A.pdf

Source ↗

Original Honda-hosted owner-manual section. Facts only; retain the exact body, engine, transmission and service conditions. Historical fluid specifications do not establish a modern replacement product’s compatibility.

United States; 1990 Civic hatchback and sedan only; wagons excluded1990 Civic Hatchback/Sedan Owner’s Manual, SI9090O00082A.pdf, printed 87 / PDF6; official SI9090MAINIDX identifies model year and hatchback/sedan scope.Spark plug specification: 1990 Civic Hatchback/Sedan Owner’s Manual, SI9090O00082A.pdf, printed 87 / PDF6; official SI9090MAINIDX identifies model year and hatchback/sedan scope.Spark plug gap: 1990 Civic Hatchback/Sedan Owner’s Manual, SI9090O00082A.pdf, printed 87 / PDF6; official SI9090MAINIDX identifies model year and hatchback/sedan scope.