7.3L Power Stroke Oil Capacity
The 7.3L Power Stroke takes 15 quarts (14.2 liters) of oil with a filter change, and 15W-40 is the standard grade. That capacity is the same for every model year (1994-2003).
Key takeaways
- Capacity: 15 quarts with a filter change - the same for every model year.
- Viscosity: 15W-40, or 5W-40 synthetic (cold climates).
- Look for oil meeting API CJ-4 or higher, Ford WSS-M2C171-D/E.
- Fitted to: Ford F-250, Ford F-350, Ford Super Duty (1999-2003).
Oil capacity by model year
| Model years | Capacity (with filter) | Viscosity |
|---|---|---|
| 1994-2003 | 15 qt(14.2 L) | 15W-40 · 5W-40 synthetic (cold climates) |
15 quarts with a filter change on every 7.3L Power Stroke - OBS trucks (1994.5-1997) and Super Duty (1999-2003) alike. This one genuinely does not change by model year.
Oil for the 7.3L Power Stroke
You need 15 quarts of 15W-40 heavy-duty diesel oil meeting API CJ-4 or higher, Ford WSS-M2C171-D/E - that is more than one jug, so buy accordingly. Change the filter with it.
Shop 15W-40 diesel oilYou need about 15 quartsShopAs an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Shop 15W-40 diesel oilTrucks with the 7.3L Power Stroke
Looking for a specific year instead? Look up oil by year, make and model.
Frequently asked
How much oil does a 7.3L Power Stroke take?
The 7.3L Power Stroke takes 15 quarts (14.2 liters) of oil with a filter change, and 15W-40 is the standard grade. That capacity is the same for every model year (1994-2003).
What oil viscosity does the 7.3L Power Stroke use?
1994-2003: 15W-40, or 5W-40 synthetic (cold climates). Look for oil meeting API CJ-4 or higher, Ford WSS-M2C171-D/E.
Which trucks use the 7.3L Power Stroke?
Ford F-250, Ford F-350, Ford Super Duty (1999-2003), Ford E-Series van. It ran from 1994 to 2003.
Should I fill it to exactly 15 quarts?
No - treat the capacity as a guide and finish on the dipstick. Published capacities are nominal, and how much drains out varies with temperature, how long you let it drip, and whether the filter holds oil. Add most of it, run the engine briefly, then top up to the mark.