Do you not mean running in. From what a friend tells me from
doing his 2.5Pi you need to break-in the engine, that is, use
almost no torque, and leave off the top revs. 2/3 throttle
max. This has to be maintained for at least if not more than
the initial running in period, because the tolerances are not
At a guide, you should keep the revs between 2500-3000 to 4000
RPMs. Your engine in that region should be as gentle as possible.
Use a running in oil if you want to do it properly, ether that
or use a really cheap oil. You defiantly don't want to use any
synthetic oil, or anything that stops engine even ware.
The art or running in, is to ware the engine in so that you do
as little damage to it as possible when it's most delicate.
Yellow '79 spit wired by a trained marmot