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I have been using the Power Stroke 15w40 oil in my 2002 7.3 F350 4x4 along with the Motor Craft oil filter. The Power Stroke oil is getting harder to find at the auto parts stores, the dealer is over priced. I notice that Walmart always has the Rotella 15w40 for $6.29 a gallon, easy to find. I have heard some say that changing brands of oil is not good for the Power Stroke Engines. Is the true, or doesn't it matter as long as I change the oil and oil filter every 5000 miles? I will always use the Power Stroke oil filter, due to their quality.
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.