Service Intervals
Elder User
Joined: Sep 2005
Posts: 761
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That's true, since they don't use HEUI injectors anymore, oil quality (although still important) is not as important as it has been in the past. I'd still recommend changing it a little more often. To ensure proper DPF operation and catalyst life, CJ4 rated oil is very important.
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jimcar-9
1948 - 1956 F1, F100 & Larger F-Series Trucks
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Oct 16, 2013 09:42 AM
