[fritzie]

I have quite a bit of Case Hy-Tran Ultra hydraulic oil on hand.Does anyone know if I can use this in my Bolens GT1800? I'd rather not have to buy more if I can just use what I already have.

http://www.viscosityoil.com/hy-tran.htm

 

[DLF_IN]

I think that would work very well in your Bolens. I am running TSC Acell In one of mine. The specs are about the same as that Hy-Tran.
Dave