Honda Civic Si Ownership Cost Calculator 2026
Pre-filled with real Honda Civic Si specs. Estimate your Honda Civic Si 5-year cost of ownership — depreciation, fuel, insurance, maintenance, loan, and residual value — then compare against same-class rivals side by side.
Year-by-Year Cost Breakdown — Honda Civic Si
| Year | Start Value | Depreciation | Fuel | Insurance | Maint. | Reg | Loan Pmt | Yr Out-of-Pkt | Cumulative | End Value |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | $29,500 | −$4,130 | $1,522 | $1,500 | $850 | $150 | $6,010 | $10,033 | $15,933 | $25,370 |
| 2 | $25,370 | −$3,245 | $1,522 | $1,500 | $850 | $150 | $6,010 | $10,033 | $25,965 | $22,125 |
| 3 | $22,125 | −$2,950 | $1,522 | $1,500 | $850 | $150 | $6,010 | $10,033 | $35,998 | $19,175 |
| 4 | $19,175 | −$2,360 | $1,522 | $1,500 | $850 | $150 | $6,010 | $10,033 | $46,031 | $16,815 |
| 5 | $16,815 | −$2,065 | $1,522 | $1,500 | $850 | $150 | $6,010 | $10,033 | $56,063 | $14,750 |
| 5-yr total | — | −$14,750 | $7,612 | $7,500 | $4,250 | $750 | $30,051 | $56,063 | — | $14,750 |
Combined 32 MPG (EPA). Depreciation uses a compact-sedan segment-average retention curve (editable). Figures are estimates for planning, not a quote.
Honda Civic Si — Base Parameters
Powertrain
- Engine1.5L Turbo I4 (L15B7/L15C)
- DrivetrainFWD
- Fuelgas
- Market years2022-2024
EPA Efficiency
- City29 MPG
- Highway37 MPG
- Combined32 MPG
- Source year2021
Trims & MSRP
- Base (entry trim)$28,000
- Popular (mid trim)$29,500
- Top (fully loaded)$31,000
Same-Segment Cost Comparison
Every model below is modeled with identical assumptions (Popular trim, 20% down, 5-year loan at the national average new-car APR, 12,000 miles/year, national average tax & insurance). This apples-to-apples view is exclusive to VehCalc — manufacturer sites and KBB do not show it side by side.
| Model | Popular MSRP | 5-Yr Cost to Own | Avg / Year | Residual (5 yr) | Cost / Mile |
|---|---|---|---|---|---|
| Honda Civic Si (this car) | $29,500 | $41,313 | $8,263 | $14,750 | $0.69 |
| Kia K5 | $29,500 | $41,313 | $8,263 | $14,750 | $0.69 |
| Chevrolet Malibu | $29,000 | $40,954 | $8,191 | $14,500 | $0.68 |
| Subaru Legacy | $29,000 | $41,461 | $8,292 | $14,500 | $0.69 |
| Mazda Mazda3 | $27,500 | $40,121 | $8,024 | $13,750 | $0.67 |
Honda Civic Si Reliability, Fault Codes & Maintenance Specs
Model-specific diagnostic data for the Honda Civic Si (2022-2024 (11th Gen), 2022-2024): known OBD-II trouble codes, symptom-to-fix mapping, model-year issues, and the factory maintenance specification sheet. Print it and hand it to your technician.
OBD-II fault codes
5 codes logged for this platform, with the cause most often seen on the 1.5L Turbo I4 (L15B7/L15C).
| Code | Description | Common cause here | Severity |
|---|---|---|---|
| P0300 | Random/Multiple Cylinder Misfire | Oil dilution fouling plugs, worn coil | High |
| P0171 | System Too Lean (Bank 1) | Carbon-restricted intake, PCV leak | Medium |
| P0420 | Catalyst System Efficiency Below Threshold | Catalyst damage from oil dilution | Low |
| P0234 | Turbocharger Overboost | Wastegate actuator sticking | Medium |
| P0011 | Camshaft Position A - Timing Over-Advanced | VTC actuator wear | Medium |
Symptoms, causes & fixes
What owners actually report, what it turns out to be, and what the repair involves.
| Symptom | Root cause | Fix | Model years |
|---|---|---|---|
| Manual transmission 2nd gear grind | Synchro wear | Transmission rebuild under warranty | 2022-2023 |
| Oil dilution in cold climate | Direct injection fuel wash | Short-trip avoidance; oil change at 5k | 2022-2024 |
| Oil dilution (fuel in oil) in cold climate short trips | Direct injection fuel wash past rings during cold operation | Oil change at 5k miles in cold climate. Avoid short trips. Use top-tier fuel. | 2022-2024 |
| CVT hesitation under hard acceleration | CVT belt and pulley calibration | TCM software update; CVT fluid at 30k. | 2022-2024 |
| Turbo wastegate rattle at deceleration | Wastegate actuator rod wear | Turbo inspection. | 2022-2024 |
Model-year issues
Problems tied to a specific production window rather than the whole generation.
| Years | Issue | Fix | Status |
|---|---|---|---|
| 2018-2021 | Oil dilution in cold climate short-trip driving | Oil at 5k; software update for fuel mapping | Resolved in later build |
Common problems owners report
Recurring complaints for this model, summarized from owner-reported fault patterns.
- Manual transmission synchro
- Oil dilution
- Brake pad wear
- Turbo wastegate rattle
Factory maintenance specification sheet
Spec-grade values for the Honda Civic Si. Verify against your owner's manual before service.
| Engine oil grade | 0W-20 |
| Oil capacity (with filter) | 4.5 qt |
| Oil change interval | 5,000 mi |
| Spark plug interval | 40,000 mi |
| Tire size | 235/40R18 |
| Tire pressure (cold) | 33 psi |
| Tire rotation interval | 5,000 mi |
| Air filter interval | 30,000 mi |
| Coolant service interval | 60,000 mi |
| Brake fluid interval | 30,000 mi |
| 12V battery group | Group 51R |
| Battery cold-cranking amps | 500 CCA |
Powertrain & drivetrain identity
Confirm your exact configuration before ordering parts or booking service.
| Engine / motor | 1.5L Turbo I4 (L15B7/L15C) |
| Drivetrain | FWD |
| Body style | Sedan |
| Generation | 2022-2024 (11th Gen) |
| Market years | 2022-2024 |
| Original MSRP range | $28,000-$31,000 |
| Market | US/CA |
Data sources & methodology
- OBD-II code definitionsSAE J2012 / ISO 15031-6 standardized powertrain diagnostic trouble codes, with platform-specific causes matched against the model in this dataset. Retrieved August 29, 2026.
- Fuel economy & MPGeU.S. Environmental Protection Agency fuel-economy data (fueleconomy.gov), model-year matched where available. Retrieved August 29, 2026.
- Maintenance specificationsFactory scheduled-maintenance intervals, fluid grades, tire sizes, and battery group sizes compiled per model. Retrieved August 29, 2026.
- Defects, recalls & technical service bulletinsNational Highway Traffic Safety Administration (NHTSA) defect and recall records. Retrieved August 29, 2026.
Methodology and citations are maintained by the VehCalc editorial team. Where an official schedule is not yet loaded, results are shown as model estimates and the source is stated as a reference.
Honda Civic Si — Common Ownership Questions
What is the Honda Civic Si 5-year cost of ownership in 2026?
Based on a Popular-trim purchase at $29,500 with a 20% down payment, a 5-year loan at the national average new-car APR, 12,000 miles per year, and national average tax and insurance, the estimated 5-year cost of ownership is $41,313 — about $8,263 per year — with an estimated $14,750 residual value after 5 years. Use the calculator above to tailor it to your state, down payment, and mileage.
How much does a Honda Civic Si depreciate each year?
The Civic Si sits in the compact-sedan segment. Applying a segment-average retention curve, it is estimated to keep roughly 86% of its value after the first year and 50% after five years. Depreciation is typically the single largest ownership cost, which is why our calculator shows it year by year alongside every other expense.
What is the Honda Civic Si MSRP and which trims are available?
The Civic Si ranges from $28,000 (Base (entry trim)) to $31,000 (Top (fully loaded)). Trims shown: Base (entry trim) ($28,000); Popular (mid trim) ($29,500); Top (fully loaded) ($31,000). Select a trim in the calculator to recompute costs instantly.
What are the Honda Civic Si real-world fuel costs?
EPA combined rating is 32 MPG (city 29 / highway 37). At the 2026 national average of $4.06/gal and 12,000 miles per year, fuel runs about $1,522 per year, or $7,612 over 5 years.
Does the Honda Civic Si qualify for any tax credits?
The Civic Si is a gas vehicle, so federal EV credits do not apply. State-level incentives, if any, are listed on each state's page — select your state in the calculator to see local tax and fee impact.
How do Honda Civic Si ownership costs compare with rivals?
See the side-by-side comparison table on this page. We model the Civic Si against Kia K5, Chevrolet Malibu, Subaru Legacy, Mazda Mazda3 using identical assumptions — same annual miles, down payment, and loan terms — so the difference is truly apples-to-apples. That is data the manufacturer's site and KBB do not show side by side.
What are the most common Honda Civic Si problems?
Owners of the Honda Civic Si (2022-2024) most often report: Manual transmission synchro; Oil dilution; Brake pad wear; Turbo wastegate rattle. Each is broken down with its root cause and the repair path in the reliability section above.
Which OBD-II codes does the Honda Civic Si throw most often?
The codes logged most frequently for this platform are P0300 (Random/Multiple Cylinder Misfire), P0171 (System Too Lean (Bank 1)), P0420 (Catalyst System Efficiency Below Threshold). The full list with the cause usually found on the 1.5L Turbo I4 (L15B7/L15C) and a low/medium/high severity rating is in the fault-code table above.
Why does my Honda Civic Si manual transmission 2nd gear grind?
On this model the usual cause is synchro wear. The typical repair is transmission rebuild under warranty (reported on 2022-2023 cars). The symptoms table above lists every reported fault for this platform.
Are there model-year-specific Honda Civic Si issues I should check before buying used?
Yes — 2018-2021 cars are associated with oil dilution in cold climate short-trip driving. Recommended action: oil at 5k; software update for fuel mapping Later builds were corrected. The model-year table above lists all known production-window issues.
What are the Honda Civic Si service intervals and fluid specs?
Factory spec is 0W-20 oil (4.5 qt) changed every 5,000 miles, 235/40R18 tires at 33 psi cold rotated every 5,000 miles, air filter every 30,000 miles, coolant every 60,000 miles, spark plugs every 40,000 miles, and a group 51R battery at 500 CCA. The full spec sheet is above and printable.