2008 Chevrolet Optra LS, AutomaticFACTORY OEM SERVICE PROCEDURE

Battery Usage (Diesel Engine)

Description Specification
Unit Standard
Type - Maintenance Free
Output (Capacity) V-AH 12V-90AH
Cold Cranking Amps (CCA) CCA 912
Load Test amps 450
Minimum Voltage
  • 9.6
V 21°C (70°F) and above
  • 9.5
V 15.6°C (60°F)
  • 9.4
V 10°C (50°F)
  • 9.3
V 4.4°C (40°F)
  • 9.1
V -1.1°C (30°F)
  • 8.9
V -6.7°C (20°F)
  • 8.7
V -12.2°C (10°F)
  • 8.5
V -17.8°C (0°F)
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.