What kind of tractor is it and where are you located? Of the 2 oils you list the 15-40 would be better cause it would make for easier starting in the cold and is the most common diesel oil. 10-30 or 5-30 diesel oil would be even better if it gets real cold. Older 2 stroke Detroit diesels are about the only ones that call for single grade oil. What does your manual recommend? I run 15-40 in the Kubota in my skid steer. The manual says 10-30 but that's mostly so they can say one oil works for everything, engine, hydraulics and chain case. I've never had a problem running the 15-40. I have to plug it in in the cold anyway. Dave
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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