Tune-up and Engine Performance Checks: Technical Service Bulletins

• Customer Interest
  • Engine - No Start, Hard Start, or Poor Running
  • Engine - Misfire
  • Engine - Idle Speed Hunts When Cold
  • Fuel System - Poor Engine Performance
    • Overview
    • Letter - Dealership Manager
    • Letter - Chief Executive Officer, Clark Oil Company
  • Fuel - Improved Additive
• By Symptom
  • Customer Interest
    • Engine - No Start, Hard Start, or Poor Running
    • Engine - Misfire
    • Engine - Idle Speed Hunts When Cold
    • Fuel System - Poor Engine Performance
      • Overview
      • Letter - Dealership Manager
      • Letter - Chief Executive Officer, Clark Oil Company
    • Fuel - Improved Additive
  • Driveability
    • Engine - No Start, Hard Start, or Poor Running
    • Engine - Misfire
    • Fuel System - Poor Engine Performance
      • Overview
      • Letter - Dealership Manager
      • Letter - Chief Executive Officer, Clark Oil Company
    • Fuel - Improved Additive
  • Erratic Operation
    • Engine - Idle Speed Hunts When Cold
  • Poor performance
    • Fuel System - Poor Engine Performance
      • Overview
      • Letter - Dealership Manager
      • Letter - Chief Executive Officer, Clark Oil Company
  • Starting problems
    • Engine - No Start, Hard Start, or Poor Running
    • Engine - Precautions for Cold Weather Starting
• All Technical Service Bulletins
  • Engine - No Start, Hard Start, or Poor Running
  • Engine - Misfire
  • Engine - Idle Speed Hunts When Cold
  • Engine - Precautions for Cold Weather Starting
  • Fuel System - Poor Engine Performance
    • Overview
    • Letter - Dealership Manager
    • Letter - Chief Executive Officer, Clark Oil Company
  • Fuel - Use of Gasolines Containing Detergent Recommended
  • Fuel - Improved Additive