* Specific Engine Code: Ford used different variations of the 351 Windsor engine. The exact code (usually found on a casting on the engine block itself, or on a sticker under the hood) is needed to pinpoint the exact specifications.
* Oil Filter: The type of oil filter used will slightly affect the total capacity.
* Oil Pan: Aftermarket oil pans or modifications to the existing pan might alter the capacity.
To find the correct oil capacity:
1. Locate the Engine Code: This is the most crucial step. Find the engine code and look it up in a Ford service manual or a reliable online database (like a Ford parts website).
2. Consult a Service Manual: A factory service manual for your specific 1996 Ford vehicle (the model matters since the capacity might vary even with the same engine code due to the vehicle's configuration) will give the precise oil capacity. This is the most reliable source.
3. Use a Reputable Online Resource: Websites specializing in Ford parts or automotive repair information might list the oil capacity based on engine codes, but always double-check this information against a service manual if possible.
4. Check the Owner's Manual: While less likely to have the precise oil capacity for the engine alone, your owner's manual might list the oil capacity for your specific vehicle and year.
In short: Don't rely on a general number found online for a "1996 Ford 351." You need to identify the specific engine code to find the accurate oil capacity.