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The following are consequences of a bad engine break-in:[SUP][1][/SUP]
- Oil will gather in the cylinder wall, and a vehicle will use much more of it than necessary.
- If a ring does not set into the grooves of the cylinder wall but creates friction against them each time an engine runs, the cylinder wall will be worn out.
- Unsuccessfully setting of piston rings into a cylinder wall will result in the necessity of new engine parts, or the entire engine depending on how extensive the damage is.
for breaking in a new vehicle: don?t rev too high, and avoid sustained periods at high speed; i.e., occasionally vary the pace insofar as the situation allows you to do so safely. Your engine isn?t the only thing that will be ?thankful? for respecting the break-in period: the drive shaft, shocks, brakes and even your tires will benefit from this extra care taken early in the game. You also want to avoid excessively brisk starts, sudden stops, taking turns too tightly and shifting gears too quickly (with a manual transmission) when possible.
