The 2010 Civic uses a cartridge-style oil filter mounted on top of the engine

Your 2010 Honda Civic's oil filter is not the spin-on canister type you might expect. Instead, it's a cartridge filter — a cylindrical element that sits inside a plastic housing on top of the engine, near the valve cover. This design is common across Honda's lineup and is actually simpler to work with once you know where to look and what tools you need.

The filter housing is located on the driver's side of the engine bay, and you'll recognize it by the large plastic cap with a wrench symbol printed on it. This cap unscrews to reveal the filter element inside. Because the filter sits vertically and the housing contains oil, you'll need to be ready for some spillage when you open it — have a drain pan or old towels nearby.

Key Takeaways

  • The 2010 Civic's cartridge filter sits in a housing on top of the engine, accessed by unscrewing the plastic cap with a filter wrench.
  • You will need a cartridge filter wrench (usually 74 mm or 86 mm depending on your engine size) and a new filter element, not a spin-on filter.
  • The filter housing cap should be hand-tightened only after installing a new rubber seal — over-tightening will crack the plastic housing.
  • Changing the filter takes 10 to 15 minutes and should be done every time you change the oil, typically every 3,000 to 5,000 miles depending on your driving.

What size filter wrench you need depends on your engine

The 2010 Civic came with either a 1.8-liter four-cylinder engine (the standard) or a 2.0-liter in the Si model. Both use cartridge filters, but the housing cap sizes differ. The standard 1.8L engine uses a 74 mm filter wrench, while the 2.0L Si uses an 86 mm wrench. If you're unsure which engine you have, check your owner's manual or look at the engine cover — it will say "1.8" or "2.0" on it.

A cartridge filter wrench is a socket-like tool with a handle that grips the plastic cap. You can find them at any auto parts store for $10 to $20, and they're worth buying rather than renting because you'll use it every oil change. Some people try to use a regular oil filter wrench or strap wrench, but these often slip on the plastic cap and can crack it. The correct tool grips firmly and lets you explore steady pressure without damage.

How to remove the old filter and install the new one

Start with the engine cold or warm but not hot — you don't want to burn yourself on hot oil. Place a drain pan or several old towels under the filter housing to catch the oil that will spill when you open it. Locate the filter cap on top of the engine, fit your cartridge filter wrench onto it, and turn counterclockwise. The cap will unscrew and lift away, revealing the filter element inside.

Pull the old filter element straight up and out of the housing. Some oil will drip from it, so keep your pan underneath. Look inside the housing and wipe out any debris or old rubber seal pieces with a clean rag. The rubber seal (also called an O-ring) sits in a groove at the bottom of the cap. Remove the old seal by hand — it should come away easily — and discard it.

Take the new filter element and the new rubber seal that comes with it. Install the seal in the groove at the bottom of the cap first, making sure it sits flat and fully in the groove all the way around. Then insert the new filter element into the housing, pushing it down until it seats. Screw the cap back on by hand, turning clockwise until the seal contacts the housing. Then tighten it a final quarter turn with your wrench — no more. Over-tightening will crack the plastic housing and create a leak.

Why the rubber seal matters more than you might think

The rubber seal is what stops oil from leaking out around the cap. If you reuse the old seal or install the new one incorrectly, you'll develop a slow drip that gets worse over time. The seal hardens and shrinks as it ages, which is why Honda includes a new one with every replacement filter. Installing it is the easiest step and the one most people skip — don't.

The seal should sit completely flat in its groove with no twists or folds. If you're having trouble getting it to stay in place, wet your fingers slightly — the moisture helps it grip the groove while you work. Once the cap is screwed on, the seal compresses and creates a watertight fit. If you notice oil dripping from the housing cap a few days after an oil change, the seal was either installed wrong or the cap was over-tightened and cracked the housing.

What filter to buy and where to find it

Honda's original equipment (OE) filter for the 2010 Civic is part number 15400-PLM-A01 for the standard 1.8L engine and 15400-PLM-A02 for the 2.0L Si. These are available from Honda dealerships and most online retailers. Aftermarket cartridge filters from brands like Fram, Mobil 1, and Bosch also fit the 2010 Civic and cost less — typically $8 to $15 compared to $12 to $18 for the Honda part.

The main difference between OE and aftermarket filters is the media (the material that traps particles) and the seal quality. Honda's filters use a slightly finer media and a more durable seal, which is why they cost more. For most owners, a quality aftermarket filter works fine and will protect your engine just as well. What matters most is changing it on schedule, not which brand you choose.

How often to change the filter and what happens if you don't

Your 2010 Civic's owner's manual recommends changing the oil and filter every 3,000 miles under normal driving conditions, or every 5,000 to 10,000 miles if you use Honda's synthetic oil and drive mostly on highways. The filter should always be changed at the same time as the oil — there's no reason to change one without the other.

A clogged filter restricts oil flow to the engine, which forces the oil pressure relief valve to open and bypass unfiltered oil directly to your bearings and cylinder walls. This happens gradually, so you won't notice it until damage has already started. Over time, metal particles and sludge accumulate in the oil, wearing down bearings and increasing friction. Changing the filter on schedule is one of the cheapest ways to keep your engine running reliably and avoid a $3,000+ rebuild down the road.

Frequently Asked Questions

Can I use a spin-on filter on my 2010 Civic instead of the cartridge type?

No. The 2010 Civic is designed for a cartridge filter, and the housing is not threaded for a spin-on filter. Attempting to force a spin-on filter onto the housing will damage it. Stick with the cartridge type that came on your car.

What should I do if I over-tightened the cap and cracked the housing?

You'll need to replace the entire filter housing assembly, which costs $40 to $80 plus labor at a shop. The housing is plastic and cannot be repaired once cracked. This is why hand-tightening plus a quarter turn with the wrench is the correct procedure — it's tight enough to seal but not so tight that it breaks the plastic.

Is it normal for a little oil to drip after I change the filter?

A few drops are normal as the seal settles. If oil continues to drip after a day or two, the seal was installed incorrectly or the cap is over-tightened. Remove the cap, check that the seal is sitting flat in its groove, and reinstall it with only hand-tightening plus a quarter turn with the wrench.

Do I need to fill the new filter with oil before installing it?

No. Unlike spin-on filters, cartridge filters do not need to be pre-filled. straightforward install the dry filter element into the housing, screw the cap back on, and start the engine. The oil will flow through the filter when ready.