TAMIYA Silicone Oil #400, damper oil, 40 ml

TAMIYA Silicone Oil #400 is a 40 ml damper oil for model vehicles, made to tune the feel of oil-filled dampers with a simple viscosity change. The #400 grade sits in the firmer range, since higher numbers indicate a harder viscosity, making it a practical choice when suspension setup needs a more controlled response. The bottle uses a narrow dispensing tip that supports careful, drop-by-drop application when filling shock bodies on the workbench. Its larger 40 ml content is aimed at frequent users and offers more oil than the earlier 35 ml and 20 ml bottles referenced in previous sets. Each viscosity grade in the range has its own color coding, which helps keep different oils clearly sorted in a toolbox during maintenance sessions. The supplied safety data identifies the mixture as organopolysiloxanes and lists its intended use as damper oil for model vehicles. On a setup bench, Silicone Oil #400 fits routine shock servicing, viscosity swaps between runs, and fine suspension adjustment when track conditions or handling balance call for a firmer damper fill. It also suits keeping several grades organized side by side, so the selected oil can be identified quickly before the next rebuild or test session.