In brief, the 2015 Chevrolet Sonic uses different oil filters depending on the engine. The 1.8-liter inline‑4 generally uses AC Delco PF2257, while the 1.4-liter turbo version uses AC Delco PF2252 (with equivalent aftermarket cross-references available). Always verify the exact part number for your vehicle by checking the engine code or VIN.
Engine options and their filters
The Sonic offered two gasoline engines in 2015, and each uses a distinct oil filter. The following guidelines help identify the correct filter for your model.
1.8L inline-4 engine (engine code often LUV) — Oil filter: AC Delco PF2257 (spin-on type). This is the filter commonly associated with the 1.8L variant in many GM small cars around that year.
1.4L turbocharged engine (engine code often LUJ) — Oil filter: AC Delco PF2252. This filter is used on the 1.4L turbo configuration in several GM vehicles, including the Sonic.
Note: Part numbers above are the typical GM/ACDelco references associated with these engines, but exact numbers can vary by production run or regional catalog. Always confirm with the vehicle’s engine code, VIN, or the official parts catalog.
How to confirm the exact oil filter for your Sonic
To ensure you order the correct filter, use these verification steps before purchasing.
- Identify your engine by checking the Vehicle Identification Number (VIN) or the engine code stamped on the engine block (e.g., LUV for 1.8L, LUJ for 1.4L turbo).
- Consult the owner's manual or the vehicle’s maintenance schedule for the recommended oil filter part number.
- Inspect the current filter for any numbers or codes, or check the packaging if you’re replacing an existing unit.
- Cross-reference the engine code or VIN with GM’s official parts catalog or a trusted parts retailer’s lookup tool to confirm the exact part number or a suitable equivalent.
Having the correct filter is important for proper sealing and filtration. If you’re unsure, contact a Chevrolet dealership or a qualified mechanic for assistance.
How to replace the oil filter on a Sonic
If you’re planning a DIY oil change, follow these general steps to replace the filter along with the engine oil.
- Before starting, run the engine briefly to warm the oil, then park on a level surface and gather your materials: the correct oil type and quantity, the appropriate oil filter, a new drain plug washer if needed, and tools for filter removal.
- Lift the car safely and place a drain pan underneath the oil drain plug. Remove the drain plug and let the old oil drain completely.
- While the oil is draining, locate and remove the old oil filter by turning it counterclockwise. Be prepared for residual oil to spill.
- Prepare the new filter by applying a light coating of fresh oil to the gasket, then install it by hand until snug. Do not overtighten.
- Reinstall the drain plug with a new washer if provided, then refill the engine with the recommended grade and amount of oil.
- Run the engine a few minutes, check for leaks, and verify the oil level on the dipstick. Top up if necessary and dispose of used oil and the old filter properly.
Car maintenance practices can vary by market and vehicle configuration. If you’re uncertain about the correct oil filter or oil type for your Sonic, consult your owner’s manual or a Chevrolet service professional.
Summary
The 2015 Chevy Sonic uses different oil filters depending on the engine: PF2257 for the 1.8L and PF2252 for the 1.4L turbo, with possible equivalent cross-references from aftermarket brands. Always verify the exact part number using the engine code, VIN, or official GM/ACDelco catalogs before purchasing. Regular oil changes with the correct filter help maintain engine health and performance.