I'm looking at an old Deutz 13006 tractor that specs 20W oil for both the trans and hydraulics, power steering too. Would Shaeffers Simplex trans/hydraulic fluid be a good substitute? Or, should I just find some 20W oil?
Jeffery in that age tractor most any UTF should work.
http://www.tractordata.com/farm-tractors/002/2/0/2201-deutz-d-13006.html
Below is one that is <$5 a gallon that should work OK or you could spent more and get something that meets more of the specs of today's tractors. I used it when we drained, flushed and refilled our lift on the dump truck since I needed about 30 gallons. I typically use Premium line from TSC for the old JD 310B because it can deal with water in the system better per marketing materials. http://www.ruralking.com/super-s-super-t...tJYihoCO3bw_wcB