1.8L I4 (R18Z1)
- Oil viscosity
- 0W-20
- Oil capacity
- 3.9 qt with filter
- Oil spec
- API SN or later
- Timing drive
- Chain, no scheduled service
- Spark plugs
- Iridium
- Coolant
- Honda Type 2 (blue)
Ninth generation (2012 to 2015)
Enter the current mileage to see what needs attention, then use the milestones below to plan the work ahead.
Grouped the way a service booklet reads. Costs are broad national shop ranges; severe use shortens the intervals shown in that column.
| Service item | Action | Normal interval | Severe use | Shop range | DIY |
|---|---|---|---|---|---|
| Engine oil | Replace | 7,500 mi / 12 mo | 3,750 mi / 6 mo | $65 to $125 | Light |
| Oil filter | Replace | 7,500 mi / 12 mo | 3,750 mi / 6 mo | Included in service | Light |
| Tire rotation | Rotate | Every 7,500 mi | Same | $25 to $60 | Light |
| Service item | Action | Normal interval | Severe use | Shop range | DIY |
|---|---|---|---|---|---|
| Front brake pads | Inspect | 10,000 mi / 12 mo | Same | $150 to $320 | Moderate |
| Rear brake pads | Inspect | 10,000 mi / 12 mo | Same | $150 to $320 | Moderate |
| Service item | Action | Normal interval | Severe use | Shop range | DIY |
|---|---|---|---|---|---|
| Brake lines and hoses | Inspect | 15,000 mi / 12 mo | Same | Up to $60 | Light |
| Suspension and steering inspection | Inspect | 15,000 mi / 12 mo | Same | Up to $90 | Light |
| Service item | Action | Normal interval | Severe use | Shop range | DIY |
|---|---|---|---|---|---|
| Cabin air filter | Replace | 30,000 mi / 24 mo | 15,000 mi | $45 to $95 | Easy |
| Engine air filter | Replace | Every 30,000 mi | 15,000 mi | $35 to $75 | Easy |
| Shocks and struts | Inspect | Every 30,000 mi | Same | $600 to $1400 | Involved |
| Service item | Action | Normal interval | Severe use | Shop range | DIY |
|---|---|---|---|---|---|
| CVT fluid | Replace | Every 50,000 mi | 25,000 mi | $160 to $340 | Moderate |
| Service item | Action | Normal interval | Severe use | Shop range | DIY |
|---|---|---|---|---|---|
| Manual transmission fluid | Replace | Every 60,000 mi | Same | $100 to $180 | Moderate |
| Serpentine belt | Inspect | First at 60,000 mi, then every 15,000 mi | Same | $90 to $200 | Light |
| Service item | Action | Normal interval | Severe use | Shop range | DIY |
|---|---|---|---|---|---|
| Engine coolant | Replace | First at 100,000 mi, then every 50,000 mi | Same | $130 to $260 | Moderate |
| Spark plugs | Replace | Every 100,000 mi | Same | $150 to $420 | Moderate |
| Valve clearance | Inspect | Every 100,000 mi | Same | $250 to $500 | Involved |
| Service item | Action | Normal interval | Severe use | Shop range | DIY |
|---|---|---|---|---|---|
| Battery | Test | Every 12 mo | Same | $160 to $320 | Light |
| Battery terminal cleaning | Clean | Every 12 mo | Same | Up to $40 | Easy |
| Brake fluid | Flush | Every 36 mo | Same | $90 to $160 | Moderate |
| Tire pressure | Inspect | Every 1 mo | Same | Up to $10 | Easy |
| Washer fluid | Inspect | Every 1 mo | Same | Up to $10 | Easy |
| Wiper blades | Inspect | Every 6 mo | Same | $30 to $80 | Easy |
Time limits still apply when you drive fewer miles than the interval. Calendar-based items are listed in their own group above.
Confirm the engine before buying fluids, filters, or ignition parts. Capacities and specs differ between them.
Common tire sizes 195/65R15205/55R16215/45R17
03 / The year in context
The 2015 Civic closed out the ninth generation, and it is among the cheapest cars of its age to keep healthy. The Maintenance Minder typically calls for oil near 7,500 miles, plugs and a valve check arrive around 100,000, and coolant is first due near the same point. Brake fluid runs on Honda’s fixed three-year clock.
The Si is the outlier worth naming. Its K24 holds about half a quart more oil, revs harder, and pairs with a 6-speed manual whose fluid change near 60,000 miles is one of the best cheap improvements the car can get.
Chain-driven engines, no scheduled belt, accessible filters, and enormous parts availability make this generation a strong first DIY car. The only specialty items are Honda’s own transmission fluids.
Shorter intervals
Frequent short trips, towing, dusty roads, extreme temperatures, and long idling shorten the intervals. The severe column in the table above shows by how much; the toggle in the mileage check applies it.
Check severe-use timing04 / Worth knowing
Standard cars run the R18 with a CVT or 5-speed manual; the Si runs the K24 with a 6-speed. The engines take different oil quantities and different plugs, so trim matters at the parts counter.
The R18 uses a timing chain, as does the K24. No ninth-generation Civic has a timing belt.
Both engines use screw-type valve adjusters. If the engine ticks at idle, a valve adjustment is maintenance, not a defect, and belongs with the plug service.
CVT cars take HCF-2 fluid; manuals take Honda MTF. Neither is a place for universal fluid off the discount shelf.
05 / Cost outlook
Estimated from this schedule over five years or 60,000 miles of normal driving. Parts, labor rates, location, and condition all move the total; treat these as planning figures.
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08 / Common questions
The published interval is every 7,500 miles or 12 months, whichever comes first. Under severe conditions such as short trips, towing, dust, or extreme temperatures, the interval drops to 3,750 miles.
Every available engine, the 1.8L I4 (R18Z1) and the 2.4L I4 (K24Z7, Si), uses a timing chain. There is no scheduled timing belt replacement.
1.8L I4 (R18Z1): 0W-20, 3.9 quarts with filter. 2.4L I4 (K24Z7, Si): 0W-20, 4.4 quarts with filter. Confirm the grade printed in the owner's manual before buying.
The schedule calls for spark plugs every 100,000 miles. Minder sub-item 4, typically near 100,000 miles with iridium plugs.
Plan on CVT fluid every 50,000 miles, or 25,000 miles under severe use. Use Honda HCF-2 only. Minder sub-item 3; severe use and towing move it near 25,000 miles.
Engine coolant is first due at 100,000 miles, then every 50,000 miles. The specified coolant is Honda Type 2 (blue).
Repeated trips under about five miles, extended idling, stop-and-go traffic in heat, dusty or gravel roads, towing, and sustained sub-freezing starts. If a few of those describe a typical week, use the severe column in the table above; most manufacturers write their fine print around exactly that kind of driving.
09 / Sources
Reference only. Confirm the schedule for your exact vehicle in the owner's manual. This site is not affiliated with Honda or any manufacturer.
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