20w50 will probably be ok. I know of some using 15w40 diesel oil with no problems. If you can find non detergent oil it would be better because the design of that pump with the original GL-1 which is non detergent, it will let particles of dirt in the oil settle to the sump and they remain there until the pump is removed and it is all cleaned out. If a high detergent oil is used it will keep the particles in suspension and they will keep being ran thru the hydraulic pump since there is no filter. So non detergent would be better, low detergent would be ok.
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Today's Featured Article - Trailering Your Tractor - by Curtis Von Fange. One of the fun things of summer and fall are the parades and tractor shows that go on across America. Many owners of tractors travel long distances to attend these shows and they usually take their restored iron along with them. Safe trailering practices and inspections will ensure that the event is a fun one. A good habit to develop when using a trailer is to give that �quick look over� before taking it on a trip. Before hooking up to it check the tongue for proper operation. The latche
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