2022 Jeep Wrangler Diesel Engine Break-In Recommendations

2022 Jeep Wrangler Diesel Engine Break-In Recommendations

ENGINE BREAK-IN RECOMMENDATIONS —DIESEL ENGINE (IF EQUIPPED)

The diesel engine does not require a break-in period due to its construction. Normal operation is allowed, providing the following recommendations are followed:

• Warm up the engine before placing it under load.
• Do not operate the engine at idle for prolonged periods.
• Use the appropriate transmission gear to prevent engine lugging.
• Observe vehicle oil pressure and temperature indicators.
• Check the coolant and oil levels frequently.
• Vary throttle position at highway speeds when carrying or towing significant weight.

NOTE

• Light duty operations such as light trailer towing or no-load operations will extend the time before the engine is at full efficiency. Reduced fuel economy and power may be seen at this time.
• The engine oil installed in the engine at the factory is a high-quality energy conserving type lubricant. Oil changes should be consistent with anticipated climate conditions under which vehicle operations will occur. For recommended viscosity and quality grades see page 424. NON-DETERGENT OR STRAIGHT MINERAL OILS MUST NEVER BE USED.