Search results
O'Reilly Auto Parts carries a variety of break-in oils to give your new engine the support it needs to perform its best for years to come. O'Reilly Auto Parts has the parts and accessories, tools, and the knowledge you may need to repair your vehicle the right way. Shop O'Reilly Auto Parts online.
Aug 14, 2019 · Break-in oil uses chemistry to smooth the load-bearing parts in the engine. Smoother surfaces can carry more load, exhibit less material fatigue and reduce friction. A proper break-in oil is formulated from the ground up to be a break-in oil.
A break-in oil improves the engine’s compression and sealing. The product adds just enough lubrication to protect the engine's vulnerable components during critical break-in periods, thus saving it from wear and tear.
May 26, 2020 · What is break-in oil? Break-in oil is specifically formulated to seal the piston rings against the cylinder wall for maximum engine compression and power. Break-in oils use conventional base oils without friction-modifier additives to allow controlled wear between the rings and cylinder wall.
When breaking in any new or rebuilt engine, we recommend a dedicated Break-In Engine Oil. These are all conventional (mineral-based) oils with higher levels of ZDDP. For instructions, follow the link below that applies to your engine: Break-In Procedure for Flat Tappet Camshafts; Break-In Procedure for Roller Camshafts; Why does it matter?
Aug 3, 2017 · The process of breaking in, or “running in” a new engine is a subject that has much more controversy surrounding it than it probably should. It is steeped in old rumor, myth, hard fact, and half-truths, with a healthy blending of real science and pure BS.
Nov 13, 2014 · Consider using a premium brand oil and filter—a cheap filter will not be cheap if it costs you an engine. Use a 5w-30 or 10w-30 motor oil with an engine break-in additive (ZDDP or zinc camshaft additive), especially with flat tappet camshafts.
