The supporting facts :
Breaking in your new engines is all about the piston rings. By breaking in the engines, these rings will wear to perfection that seals throughout the cylinders. The waste from the wears will flown to the engine oil, which is when we will need to service the engine by changing the oil. This will reduce the roughness of cylinders in future. Modern engines break in relatively quickly, which is around 1000km. Usually car factories have done us a big favour by breaking-in the car engines before they are delivered to their respective customers. Be aware that by not following proper break-in procedures, one could result in premature engine or parts failure. But who cares when the car is still in warranty period *grin*.. The famous way of breaking in your engine is driving it at 30mph, then accelerate it to 50 mph. Repeat this during the 1st 3000 miles. Cities will be the best place for engine break-ins as there are may traffics for stop-and-go which suits well for the process. Below is an example of video that shows how to break-in your engine. Good luck trying.
