To use an oil filter wrench, position it securely on the filter, turn counterclockwise with steady force, then unscrew by hand once it breaks free.
For the full breakdown, see our best 86mm Oil Filter Wrench guide.
An oil filter wrench is a simple tool with one job: gripping a stubborn spin-on oil filter so you can unscrew it. Because oil filters use right-hand threads, the rule is always “lefty-loosey” — clockwise tightens, counterclockwise loosens. The trick isn’t the direction; it’s choosing the right wrench for your filter and applying steady pressure so you don’t crush the housing or strip the grip.
Choosing the Right Wrench Type for Your Filter
Oil filter wrenches come in several styles, and none of them are universal. Each must match your filter’s diameter, shape, and the clearance around it. The main types are strap/band wrenches, cap/cup wrenches, jaw/claw wrenches, plier-style tools, and chain wrenches.
A strap wrench is more flexible across sizes but can slip on oily surfaces. Jaw and chain wrenches handle tougher, stuck-on filters but need more clearance around the filter to swing.
How to Remove an Oil Filter Step by Step
Let the engine cool before you begin — hot oil causes serious burns. Then follow this sequence:
- Find and access the filter. It’s usually on the side or bottom of the engine block. You may need to remove an under-tray or shield for access.
- Place a drain pan beneath it. Oil will spill when the filter releases, so position the pan to catch the runoff.
- Set the wrench to the right size. If using a jaw-type wrench, open the jaws to the filter diameter. For a cap wrench, confirm the size matches the filter’s stamped dimensions.
- Attach the wrench securely. Slide it over the filter and make sure it grips fully.
- Turn counterclockwise with steady pressure. Apply smooth, even force — avoid jerking, which can deform the filter or injure your hand.
- Remove by hand. Once the filter breaks free, finish unscrewing it manually to avoid tipping the wrench and spilling oil.
- Clean the mounting surface. Wipe the engine block area where the old gasket sat, making sure the old gasket isn’t stuck there.
Install the new filter with a lightly oiled gasket and hand-tighten only — over-tightening makes the next oil change much harder.
Common Mistakes That Ruin an Oil Change
Most oil-filter mishaps come from a few repeatable errors. The most common is using the wrong-size wrench — a loose grip slips, while a tight fit crushes the filter. Next is failing to wipe oil off the filter and the tool; a slippery surface defeats every wrench style. A jerking motion is another frequent mistake — it can round off the filter’s edges and make removal even harder.
| Wrench Type | Best Use Case | Key Limitation |
|---|---|---|
| Cap/Cup | Clean, even grip on accessible filters | Must match exact filter size |
| Strap/Band | Handles multiple sizes | Slips on oily surfaces; one-direction only |
| Jaw/Claw | Stuck-on, stubborn filters | Needs clearance to swing |
| Chain | Very tight or oversized filters | Bulky, can damage the filter housing |
One more caution: some strap wrenches only grip in one direction. If the wrench slips instead of gripping, flip it over so it bites when you pull counterclockwise.
Safety Tips for a Mess-Free Oil Change
Keep your hands clear of hot oil at all times, and wear gloves if you have them. When the filter finally breaks free, oil will drip — expect it and keep the drain pan positioned underneath. Apply steady pressure rather than yanking, and if the filter won’t budge, stop and try a different wrench type rather than forcing it. Strap and jaw wrenches are not universal; they must fit the filter’s size, shape, and the clearance around it, and some only work in one direction.
References & Sources
- Wikipedia. “Oil-filter wrench.” Overview of wrench types and mechanics.