To be absolutely certain, you should:
* Check your owner's manual: This is the best source for the manufacturer's recommended filter.
* Look at the existing filter: If you're changing the oil yourself, the filter number will likely be printed on the old filter.
* Use a parts lookup tool: Websites like ACDelco's website, or auto parts store websites (AutoZone, Advance Auto Parts, etc.) allow you to input your vehicle's year, make, and model to find the correct filter.
While PF46 is highly likely, always double-check using one of the methods above to avoid potential problems.