As noted above, idling keeps your car's motor as a specific RPM, and even blipping the throttle does not properly load the piston rings to help them seat best -- which is best done via engine compression breaking described below and which is critical on a new car to develop best power, and nicely also results in the lowest fuel and oil consumption.
If you had a diesel, which is designed to run at low RPM's for long lengths of time, long length idling would be a different story -- but again even with a diesel only after Mazda's break in period is over.
The best way to break in a car is to vary throttle pressure (but not using more than 3/4 throttle at the beginning), and run you car up in the gears to around 4,000, then let the motor's compression "engine brake you to a lower RPM." This is easiest to do, and the way I do it, is to get to a top of long fairly steep hill, accelerate up to 4,000 RPM as a start down the hill, then take my foot off the gas entirely -- doing this a few times as I am going down it. Do this a couple of times a day during the first 500 miles of my new car's ownership.
Of course also critical and in conjunction with the above, is to not use cruise control during OEM break in period.
One last issue with extended idling, is that it results in accelerated oil wear (necessitating premature oil changing required as also posted above).
If you had a diesel, which is designed to run at low RPM's for long lengths of time, long length idling would be a different story -- but again even with a diesel only after Mazda's break in period is over.
The best way to break in a car is to vary throttle pressure (but not using more than 3/4 throttle at the beginning), and run you car up in the gears to around 4,000, then let the motor's compression "engine brake you to a lower RPM." This is easiest to do, and the way I do it, is to get to a top of long fairly steep hill, accelerate up to 4,000 RPM as a start down the hill, then take my foot off the gas entirely -- doing this a few times as I am going down it. Do this a couple of times a day during the first 500 miles of my new car's ownership.
Of course also critical and in conjunction with the above, is to not use cruise control during OEM break in period.
One last issue with extended idling, is that it results in accelerated oil wear (necessitating premature oil changing required as also posted above).