Cylinder oil heavy C-52 (GOST 6411-76) — residual oil from low-sulfur crude oils subjected to sulfuric acid and selective treatment. It differs from cylinder oil C-38 by having higher viscosity, flash and pour points, and lower ash content.
C-52
Description
Application
Used for piston steam engines of various purposes, operating with superheated steam at temperatures up to 400°C (and higher).