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Description
Let’s be honest, modding your truck is fun, but when it really matters, nothing beats staying on top of maintenance for your 7.3 Powerstroke. Stick with quality oil and filters, and you’re setting yourself up for hundreds of thousands of dependable miles. And when it’s time to wrench on it, having the right tools and diagnostic gear makes the whole process smoother and a lot more satisfying.
Factory Fluid Capacities & Recommended Weights
Engine Oil (7.3L Powerstroke)
- Capacity: 15 quarts (with filter change)
- Recommended Oil: 15W-40 diesel engine oil or 5W-40 for cold climates
Automatic Transmission (E40D)
- Capacity: 16 quarts (dry fill)
- Service Fill: varies depending on the drain method
- Recommended Fluid: MERCON V ATF
Manual Transmission (ZF S5-47)
- Capacity: 3.4 quarts
- Recommended Fluid: MERCON V ATF
Transfer Case (BorgWarner BW1356)
- Capacity: 2.5 quarts
- Recommended Fluid: MERCON ATF
Front Differential (Dana 50 or 60)
- Capacity: 3 Quarts
- Recommended Fluid: 75W-90 synthetic gear oil
Rear Differential (Sterling 10.25")
- Capacity: 3.75 quarts
- Recommended Fluid: 75W-140 synthetic gear oil
Use high-quality filtration and OEM-spec fluids to maintain optimal oil pressure, cooling efficiency, and drivetrain protection.
Explore trusted maintenance parts and filters designed specifically for the 1994-1997 7.3L Powerstroke to keep your truck running strong for the long haul.