Mineral Hydraulic Clutch Fluid | Spectro OilsMineral Hydraulic Clutch Fluid. MINERALCLUTCH. Designed for use in motorcycle hydraulic clutch systems that specify a light (SAE 10) mineral oil – such as the Magura® systems used on KTM® motorcycles. Follow manufacturer's instructions and recommendations for service and use of this product. I. HCF 12/4 oz bottles/.cme mineral jaw clutch,The end of mineral clutch oil • MotoMorganaNov 23, 2016 . There was little light in my garage when I decided to swap the original clutch slave for an upgraded aftermarket Oberon model. It was the day before we left so it was all done in the typical rush of the last moment. And of course the clutch fluid was changed as well. I had half a small bottle of what musty have.