Every engine, transmission, drivetrain and fuel economy combination the EPA certified for the 1990 Civic. 13 configurations listed, with city, highway and combined mpg, annual fuel cost and tailpipe CO₂ for each one.
| Engine | Transmission | Drive | City | Hwy | Comb. | L/100km | Fuel cost/yr | CO₂ g/mi | Fuel |
|---|---|---|---|---|---|---|---|---|---|
| 1.6L I4 | 4-speed automatic 2MODE 3LKUP | AWD | 21 | 24 | 22 | 10.7 | $3,050 | 404 | Regular Gasoline |
| 1.6L I4 | 5-speed manual | AWD | 21 | 24 | 22 | 10.7 | $3,050 | 404 | Regular Gasoline |
| 1.6L I4 | 4-speed automatic 3LKUP | FWD | 22 | 26 | 24 | 9.8 | $2,800 | 370 | Regular Gasoline |
| 1.6L I4 | 5-speed manual | FWD | 24 | 29 | 26 | 9.0 | $2,600 | 342 | Regular Gasoline |
| 1.5L I4 | 4-speed automatic 2LKUP | FWD | 24 | 29 | 26 | 9.0 | $2,600 | 342 | Regular Gasoline |
| 1.6L I4 | 5-speed manual | FWD | 24 | 30 | 27 | 8.7 | $2,500 | 329 | Regular Gasoline |
| 1.5L I4 | 4-speed automatic 2LKUP | FWD | 24 | 30 | 26 | 9.0 | $2,600 | 342 | Regular Gasoline |
| 1.5L I4 | 4-speed automatic 2LKUP | FWD | 25 | 32 | 28 | 8.4 | $2,400 | 317 | Regular Gasoline |
| 1.5L I4 | 5-speed manual | FWD | 27 | 31 | 29 | 8.1 | $2,300 | 306 | Regular Gasoline |
| 1.5L I4 | 5-speed manual | FWD | 27 | 32 | 29 | 8.1 | $2,300 | 306 | Regular Gasoline |
| 1.5L I4 | 4-speed manual | FWD | 28 | 33 | 30 | 7.8 | $2,250 | 296 | Regular Gasoline |
| 1.5L I4 | 5-speed manual | FWD | 36 | 44 | 39 | 6.0 | $1,700 | 228 | Regular Gasoline |
| 1.5L I4 | 5-speed manual SIL | FWD | 40 | 47 | 43 | 5.5 | $1,550 | 207 | Regular Gasoline |
mpg figures are the EPA window-sticker values in US gallons. The L/100km column is the same figure converted for metric readers. CO₂ is tailpipe only and excludes fuel production.
| Engine 1 | 1.5L I4 (Regular Gasoline) |
|---|---|
| Engine 2 | 1.6L I4 (Regular Gasoline) |
| Engine technology | 2LKUP, 2MODE 3LKUP, 3LKUP, SIL |
|---|
| Drivetrain | AWD, FWD |
|---|---|
| Vehicle class | Small Station Wagons, Subcompact Cars, Two Seaters |
| Fuel types | Regular Gasoline |
| Best combined | 43 mpg (5.5 L/100km) |
|---|---|
| Worst combined | 22 mpg (10.7 L/100km) |
| Spread | 22–43 mpg combined across configurations |
| Annual fuel cost (best) | $1,550 |
| Tailpipe CO₂ (best config) | 207 g/mile |
|---|---|
| Tailpipe CO₂ range | 207 – 404 g/mile across all configurations |
| 5-year fuel cost vs average new vehicle | $4,250 less |
Dimensions, curb weight, interior volume, oil capacity and torque specifications require official Honda documentation that we have not yet verified for this model year. They will be added once sourced.