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In general, people no longer break in the engines of their own vehicles after purchasing a car or motorcycle, because the process is done in production (citation needed). It is still common, even today, to find that an owner's manual recommends gentle use at first (often specified as the first 500 or 1000 kilometres or miles).
Engine braking is a generally accepted practice and can help save wear on friction brakes. It is even used in some motor sports to reduce the risk of the friction brakes overheating. Additionally, fuel injection engines generally do not use fuel while engine braking. This is known as deceleration fuel cut-off (DFCO).
A compression release engine brake, compression brake, or decompression brake is an engine braking mechanism installed on some diesel engines. When activated, it opens exhaust valves to the cylinders, right before the compression stroke ends, releasing the compressed gas trapped in the cylinders, and slowing the vehicle.
How to Stay Safe. Beyond avoiding these situations, you can also improve your car's security by adding certain features. And there's a bonus benefit to doing so.
Drive Well. Another thing you should be doing anyway is driving well — and this, too, can make repairs both less frequent and less severe. During the break-in period of the first 1,000 miles ...
A motor vehicle service or tune-up is a series of maintenance procedures carried out at a set time interval or after the vehicle has traveled a certain distance. The service intervals are specified by the vehicle manufacturer in a service schedule and some modern cars display the due date for the next service electronically on the instrument panel.
The contact breaker is operated by an engine-driven cam.On an engine with a distributor, the contact breaker can be found beneath the distributor cap.The position of the contact breaker is set so that it opens (and hence generates a spark) at exactly the optimum moment to ignite the fuel/air mixture.
Here are the 12 least reliable car brands, based on CR’s new data gathered on over 330,000 vehicles from the 2000 to 2023 model years (plus a few rare 2024 models).