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Smokey, you are correct, it is not a synthetic blend.,,,, as per normal Wal Mart, things were mixed on the shelves in similar containers, I went back today and looked again and the 15w40 in straight dino, but it is 5qts for less than the 4qt Rotella.....is there any harm in changing oil brands? I have been runin the Rotella since I got the truck in 03 with 8000 miles on it, I have the regular maintance coming up for it at 70,000. Is the motorcraft a good oil?
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2002 F250 Ext. Cab 6sp 7.3 DP Tuner, Wicked wheel, Banks Stinger Plus turbo housing and exhaust, Pyro and Boost guages, Banks 6.0 Technicooler, K&N FIPK 2, Zoodad, pop up goose neck hitch
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