DICTIONARY OF AUTOMOTIVE TERMS - "Ot"

Otg
Abbreviation Outdoor or Outside temperature gauge
OTIS
Acronym for Overhead Travel Information System
OTR
Acronym for Off-road tire. Also see A-2 tire.
Otto cycle
Four-stroke cycle consisting of the intake, Compression, firing, and Exhaust strokes, in honor of Otto Benz, the inventor. Also see Four-stroke cycle engine. It was named after the German engineer Dr. Nikolaus Otto (1832- 1891) who first patented the design in 1876
OTVS
Acronym for Oil thermal vacuum switch