In short, it depends on the engine. The 2015 Civic LX/EX/EX-L with the 1.8-liter engine uses Honda’s standard spin-on oil filter (commonly 15400-PLM-A01), while the Civic Si with the 2.4-liter engine uses a different filter (often 15400-PLM-A02). Always verify with your VIN or the owner's manual.
The question spans model-year specifics and regional variations. Honda’s 2015 Civic lineup included two primary powertrains: the 1.8-liter i-VTEC in most trims and a performance-tuned 2.4-liter in the Civic Si. Oil filters are not universally interchangeable between these engines, so identifying your exact engine is key. Below is a concise guide to identify the correct filter by engine and where to find it.
Engine options in the 2015 Civic
Two main engines were available in the 2015 Civic lineup. The standard model used a 1.8-liter engine, while the high-performance Si used a 2.4-liter engine. Each engine family typically uses a distinct oil-filter part number. The following sections outline the two configurations commonly found in the 2015 lineup.
1.8L engine (R18A1) filter
The 1.8-liter engine used in LX/EX/EX-L models typically uses Honda Genuine Oil Filter designed for this engine family.
- Oil filter: Honda Genuine Oil Filter part number 15400-PLM-A01 (common in many regions).
- Oil type: Typically 0W-20 synthetic, as recommended by Honda for this engine, per the owner's manual.
Note: Part numbers can vary by region or production batch. Always check the under-hood label or consult HondaParts lookup for your VIN.
2.4L engine (Si) filter
The 2.4-liter engine used in the Civic Si uses a different filter to accommodate its higher oil flow needs.
- Oil filter: Honda Genuine Oil Filter part number 15400-PLM-A02 (typical for the 2.4L Si engine in many markets).
- Oil type: Usually 0W-20 synthetic, per the owner's manual for this engine as well.
As with the 1.8L, verify the exact part number for your vehicle via VIN-based parts lookup or your dealer, as regional differences exist.
General maintenance notes
Beyond choosing the right filter, using the recommended oil type and maintaining the oil-change interval is essential for engine longevity. Use the owner's manual as the authoritative guide for oil viscosity and capacity, and consider using OEM or factory-approved brands for best results.
Where to buy and how to replace
Preparing for a DIY oil change requires a few basics: a replacement filter, the correct oil, a drain pan, and basic hand tools. The steps below provide a general guide; always consult the service manual for exact torque specs and model-specific instructions.
- Park on a level surface, allow the engine to cool, and gather supplies.
- Drain old oil, remove the old filter, install the new filter by hand until snug, and follow with the recommended number of additional turns.
- Refill with the correct oil amount and viscosity, run the engine briefly, and check for leaks.
- Dispose of used oil and filter responsibly.
If you're unsure of your engine variant or uncomfortable performing the change, consult a certified technician.
Summary
For a 2015 Honda Civic, the oil filter depends on the engine: 1.8L models commonly use Honda Genuine Oil Filter 15400-PLM-A01, while the 2.4L Si uses 15400-PLM-A02. Always confirm with your VIN and owner’s manual, as regional differences may apply. The oil itself is typically 0W-20 synthetic, and following Honda's maintenance schedule ensures optimal engine protection.