What oil should I use to break in a new 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.

Is break-in oil necessary for a new engine?

New cars and trucks don’t need break-in oil. The manufacturer will typically require you to drive under light-to-moderate load for a few hundred miles, then change oil. After that, you’re good to go. Racers, competitors or gearheads using a rebuilt or new crate engine, however, should use break-in oil.

Can I use synthetic oil to break-in an engine?

What about the engine in new cars? Today, most new engines come from the factory with synthetic oil. … Engine technology has improved to the point where breaking in an engine is not as critical as it used to be. These newer engines can be broken in using synthetic oil.

What is the best way to break-in a new engine?

6 Techniques for Breaking in a New Car

  1. Don’t Push the Engine Too Hard. In the first 1,000 miles, don’t push the engine to the red line. …
  2. Change Gear at a Low RPM. …
  3. Don’t Floor the Accelerator. …
  4. Avoid Short Trips Which Don’t Give the Engine Time to Warm Up. …
  5. Don’t Tow Heavy Loads. …
  6. Adjust Your Driving Style for Safety.
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What oil should I use after break-in oil?

Royal Purple Break-in Oil is a fully formulated conventional 10W-30 engine oil and does not require the use of any other chemical additives. Royal Purple recommends switching to a high-performance synthetic Royal Purple engine oil after break-in for maximum engine performance and protection.

What viscosity is break in oil?

Viscosity typical of 5W-30.

What to do after installing a new engine?

Drain & replace engine oils to manufacturers suggested levels. Replace oil filter. Timing belts/chains, water pump, thermostat, spark plugs, fluids, and seals are routine maintenance items and should be replaced at the time of installation and at the vehicle manufacturer’s recommended service intervals.

How do you break in a new engine while driving?

Vary Your Engine Speed

Don’t push your new engine too hard for the first 1,000 miles. This can put a lot of strain on components. You should vary your speed while keeping the engine under 4,000 RPMs to properly break-in the engine. After that, you can gradually increase the RPM without any negative effects.

Why is mineral oil used for engine break-in?

If your engine has recently been overhauled, or is new, then you should “Break-In” your engine using straight mineral oils. … The objective of the break-in procedure is to rub off any high spots, both on the cylinder wall and the piston rings, so that the rings can create a tight gas seal for normal operation.