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Power Strokes
7.3 Tech
Oil Oil Oil
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[QUOTE="Supersize, post: 338293, member: 4430"] My dad and I have switched to a synthetic 30 weight motor oil in our cat diesels with good luck. Getting over 100,000 miles between oil changes. Smooth idle, good preasure, easier cold starts and a little help with gas mileage. Have not ran the oil in my 7.3 yet, but have the 5-30 sitting on the shelf for the next oil change. [/QUOTE]
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