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Break your engine in the right way



I bet the dealer did not discuss the approach procedure for your new car with you and found you on page 79 of the boring user manual.

Luckily, most cars have a similar break-in procedure, and even if you refuse to read your manual, you can make it successful.


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How to break the engine of your new car


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The reason for the break-in time is to connect the friction surfaces of the motor in the smoothest way so that they seal or rotate against each other with minimal leakage or friction. This can result in better fuel economy, lower oil consumption, better power delivery, and longer engine life at the end of the vehicle's career. That's a nice balance for less than a thousand miles of restraint ahead.

Take a look at this table of burglary guidelines from a 2018 Mercedes GLC, 2018 Hyundai Elantra and 2018 Toyota RAV4. Different manufacturers, but quite similar directives

GLC

Elantra

RAV4

Miles

1.000

600

200-600

Loading

Vary, avoid maximum speed [19659014] Varying, avoiding top speed

No towing (500 km)

Speed ​​

2/3 of maximum

2,000-4,000

Vary (600 km)

Full throttle

No [19659014] No

No

Brakes

No engine braking

Avoid hard stops

Avoid hard stops (200 mi.)

Read the manual of your car, of course, but it will probably boil down to a four-point plan in this direction:

  • No top speed or full throttle (WOT)
  • Vary your revs while riding in the middle of range.
  • Avoid hard stops for your brakes to arrive safely.
  • No towing.
  Piston Rings

Your engine is basically a friction factory. The engine break-in brings the parts to each other, so they beat each other a little less.


MAHLE North America

Another thing I would personally do is to change the engine oil and filter at the end of the break-in period. This is an old-school technique, but the mindset assumes that a motor sheds most of the metal particles when retracted, and it's good to rinse them off.

The computer control modules in modern car engines, transmissions, and braking systems could probably enforce the retraction steps automatically today, but car owners would bristle at this much forced limit and it could be dangerous to limp a car's performance emergency situation arises.


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