DICTIONARY OF AUTOMOTIVE TERMS - "Sb"

SB
An API designation for older minimum-duty gasoline engines operated under such mild conditions that only minimum protection is given. Oils of this designation have been used since the 1930s and provide mild antiscuff capability and resistance to oil oxidation and bearing corrosion. It was a replacement for SA designated oil and was replaced by SC oil. SB oil should not be used in any modern engines. Instead, use the most current SM designated oil.
SBDS
Acronym for Service Bay Diagnostic System
SBEC
Acronym for Single Board Engine Controller (replaced by PCM)
SBR
Acronym for Steel belted radial
SBS
  1. Acronym for Boost Solenoid (Ford)
  2. Acronym for Seat-integrated belt system
SBT
Acronym for Serial Bus Traveler