Mornin' Dave, asking an oil question on this board is like pokin a stick in a hornets nest !! However, had the same question myself a few years ago. I asked both Conoco and Shell. Got the same answer from both, still using 15/40. Just parked a 930 case last season with a very tired engine. We powered an irrigation pump with it amoung other chores. We put about 5000 hours on it - all with 15/40 in it. ( and who knows how many hours the tractor had when we got it ! ) I use 15/40 in everything but my four wheeler and my 97 chev pickup. Ken
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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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