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By 1964fordf100292 - 17 Years Ago
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hey guys. I was at the local freightliner dealer putting in a app and happen to pop over to look at the oils and they had mobil 1 5/40W synthetic that has the CI-4 Plus api rating. now, this is the only 5/40 oil i have found with the CI-4 plus(higher zinc content).
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By paul2748 - 17 Years Ago
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While I haven't looked lately, up to about a month ago I was finding CI-4 15-40 oil in almost every parts store I went into. With the findings from Gil Baumgartner's study, it looks like the CJ-4 oil is okay.
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