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HSMO

Glossary “HSMO” Definition:
Hydraulic System Mineral Oil; A brake fluid made from a mineral oil base, used by a few European carmakers. DOT specifications do not apply to HSMO fluids, and HSMO fluids cannot be mixed with DOT fluids.

hot wire

Glossary “hot wire” Definition:
1). Wire that carries current from the ungrounded terminal of the battery to an electric load. 2). To bypass the ignition switch to start the vehicle.

hot working

Glossary “hot working” Definition:
The mechanical working of metal at a temperature above it recrystallization point and high enough to prevent strain hardening.