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Power Strokes
2017+ 6.7 Aluminum Super Duty
5w40 Schaeffers oil
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[QUOTE="Diesel625, post: 1537539, member: 26128"] That’s what I figured. I imagined if the 15w40 and 10w30 were both approved, the 5w40 should be as well. I’ll definitely be working the truck hard. I’m building a welding skid for it now, and it will pull my 40ft gooseneck with tools and materials as well. I’m glad to hear the oil is doing well in them. [/QUOTE]
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2017+ 6.7 Aluminum Super Duty
5w40 Schaeffers oil
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