Red Line Break-In Oil 40WT – 1 Quart 

Red Line Break-In Oil 40WT – 1 Quart 

Red Line Break-In Oil 40WT is specifically formulated to provide maximum protection during the critical engine break-in period. This petroleum-based formula features enhanced anti-wear additives, including high levels of zinc and phosphorus (ZDDP), to protect valvetrain components such as flat-tappet camshafts and lifters.

Unlike conventional oils, this break-in blend allows for proper ring seating while offering superior wear protection—making it ideal for new or rebuilt engines in high-performance street and race applications.

Key Features:

• SAE 40 weight break-in oil
• High ZDDP content for extreme wear protection
• Ideal for flat-tappet and roller cam engines
• Formulated to allow fast and proper piston ring seating
• Not designed for extended use—drain and replace after break-in

Recommended Use:

Red Line recommends using Break-In Oil 40WT for approximately 1 to 2 hours of runtime or 100 to 200 miles of street driving, depending on your break-in method and engine type.

• For street engines:
• • Drive gently for the first 100–200 miles to allow rings to seat and parts to wear in properly.
  • Avoid high RPM and heavy load during this time.
• For race engines or dyno break-ins:
  • 1–2 hours of runtime is usually sufficient before draining and switching to your regular oil.
  • Once break-in is complete, drain the oil and replace it with your preferred high-quality synthetic or conventional oil, depending on your build and usage.

Volume: 1 Quart (0.946L)
Part Number: 81402

Protect your investment right from the first start with Red Line Break-In Oil 40WT.