Ensure the longevity and optimal performance of your fresh engine build with Royal Purple SAE 10W-30 Break-In Oil (P/N: 11487), available in a 1-quart bottle at Straight Six Imports. This specialized formula is absolutely critical during the initial running period for new, rebuilt, and modified import engines featuring new piston rings and/or flat tappet camshafts.

The first 500 miles are the most important phase for an engine's lifespan, as proper ring seating ensures maximum compression and power later on. Royal Purple's Break-In Oil uses a non-friction-modified, mineral-oil base fortified with an extremely high concentration of Zinc/Phosphorus (ZDDP). This high ZDDP level creates a protective chemical layer essential for establishing the contact pattern on high-load components like camshafts and lifters.

Key Benefits for New Engine Builds:

• Optimizes Ring Seating: Designed with the correct friction characteristics to allow new piston rings to seat quickly against the cylinder walls, maximizing compression.

• Extreme Wear Protection (High ZDDP): Contains a massive dose of ZDDP crucial for protecting new flat tappet camshafts and other high-load valvetrain components.

• Non-Synthetic Formula: Mineral base ensures necessary initial wear for proper break-in (to be swapped out for full synthetic after the initial period).

• Viscosity: SAE 10W-30 is a common viscosity choice for many rebuilt import engines.

Give your investment the best start possible. Trust the proven protection of Royal Purple 11487 Break-In Oil for your performance engine build.