AMSOIL and Break In on New and Rebuilt Engines

Regarding the use of AMSOIL Synthetic Motor Oils in brand new or rebuilt engines, it is recommended, however not mandatory, that the motor be initially operated with petroleum oil up to its first normal drain interval. The advantages of doing this are as follows.

New engines or engine components generate high wear metals to begin with and generally contain debris from machining and assembly. It is more beneficial to allow these wear metals to collect in an inexpensive motor oil than to circulate throughout the crankcase for extended periods in a synthetic motor oil. By operating the vehicle to its first drain interval with a petroleum oil, these wear metals and manufacturing debris collect in the oil and are then flushed out of the crankcase when drained. This allows for a much cleaner operating environment for the synthetic lubricant.

Within the first miles of operation, if there are any defects in the assembly or workmanship of the engine components, they may be corrected before installing the more expensive synthetic motor oil. Occasionally, rebuilt engines may have re-machined components or materials which can sometimes be mismatched. These problems will develop in a fairly short period of time. If excessive oil consumption, leaks, or any other problem is noted, this should be corrected prior to changing to AMSOIL Synthetic Oil.

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For USA & Canada
Order by phone
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Toll-Free at:
1-800-777-7094

          

Give Operator ZO # 101389

Have the 3-letter code for each product you require.

For example SAE 5W-30 Synthetic Motor Oil (ASL)

If in doubt as to what type of filter or other parts you require go to

AmsOil online application Guide