Bencina Blanca is "White Gas" which typically is naptha or a mix of solvents heavy in the use of naptha. But like white gas here in the states, sometimes other things are called that depending on product, locale and other things.

I degrease with whatever light oil or mineral spirit type solvent is nearest to me at the time I need it. For small jobs I'll just shoot a burst of WD40 in a shop rag. For larger jobs mineral spirits, though I tend to break out like I had poison ivy if I don't use gloves and wash soon after. I think that's just me though. I used to help a house painter when a teen and we all but bathed in the stuff during and after a job. After a few years of that I started getting sensitive to it.