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Power Strokes
7.3 Tech
Is Rotella really bad on a 7.3?
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[QUOTE="Powerstroke Man 6.4, post: 1181128, member: 4573"] Bought my old 7.3 with 267K it ran CAT 15W40 and was serviced by cat every 5K miles up until I bought it I always ran rotella at about the 4000-4500 mile mark the truck always used to loose power/rough idle. I saw Delvac was on sale at O'reilys switched to Delvac and never switched back to rotella ever again truck ran smoother on Delvac and never had that 4500 mile lost of power problem ever again. I also tried Valvoline premium blue truck loved that oil also and it never had the problems rotella gave me either. The original factory injectors went out at 305K took it to Ford to have the VC's pulled and injectors checked. Mechanic and service manger were amazed when they saw it was on the factory set of injectors they said they never seen a factory set last that long also this truck had 0 blowby. [/QUOTE]
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Is Rotella really bad on a 7.3?
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