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Power Strokes
6.0 Tech
rotella t6 5w40
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[QUOTE="Diesel625, post: 1551917, member: 26128"] I know a few people who have run 5w40 rotella, and said it was ok. I personally run schaeffers 5w40, or 15w40, and will not try anything else. I used to run Mobil 1 tdt oil and always liked it as well. I would definitely run the 5w40 rotella before their 15w40. I had 334k miles on my 06 before I had issues with it. It was run with nothing but motorcraft 15w40 before I bought it and started using schaeffers. [/QUOTE]
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