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Running in procedures?

Practical Engine Building

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Hi all,

I was just wondering what running in procedures (if any) are there in my newly built RB25det with forge pistons/rods and the usual hardware?

i have running in oil currently in it but I'm not sure at what point do I replace it with fully synthetic oil?

Have you watched the webinar on engine break-in?


These forum discussions might be helpful as well:



There are plenty more.. Just type "Break In" in to the search box at the top of the forum...

Thats brilliant thank you David i really appreciate it, i shall have a good watch and read. :)

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