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Re: bought IH 986

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Posted by Cliff Neubauer on January 11, 2007 at 19:04:23 from (69.66.91.166):

In Reply to: bought IH 986 posted by Tmay on January 11, 2007 at 17:28:27:

Those IH engines really need a straight weight oil, we runt 30wt in ours year around. I think it's something about the way the cam is in the IH engines that cause them to break down the multi-weight oils faster than straight weight oils. A guy on another forum did some experimenting with oil samples and with 15w40 oil in an IH 414 engine according to the oil samples the oil needed changed at 50-60 hours.

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