Best way to break-in a new car?

[M7ammed]

Well since my car is going to be here in a matter of 2 weeks or some, I was thinking how I should break it in. BMW recommends going easy for a while ...etc, but after reading this (http://www.mototuneusa.com/break_in_secrets.htm) I'm a bit confused . I'm going to do a break-in Oil change at 1000KMs even though BMW doesn't require it .

[Chaycore]

dont they need an inspection shortly after purchase? most engines are run in from the factory nowadays, but being a turbo engine id have thought about 1500 miles before redlining it?

[styler2002i]

yeah i agree with chaycore here. are they not already run in from the factory?

but to be on the safe side it would wait for the 1st service/run in service that they do on new cars

[M7ammed]

but to be on the safe side it would wait for the 1st service/run in service that they do on new cars

BMW doesn't have a run-in service. Guess its going to be a long wait until the redline comes lol. I might try it once just to get it out of my system lol

[Tilly]

IMO it just needs to be slowly taken up to normal running temp and then left to cool. Each time you drive the car repeat the process but gradually taking it a little further each time so it gets hotter.

The engines tend to be bench run BUT this doesn't include the exhaust system as far as I'm aware and as you know when metal heats up it can warp but if it's gradually heated it will hold shape and then once cooled it will be rock solid so next time you put heat through it it'll only be stronger.

[Saqib]

Your so lucky! Wish I was breaking in a new car :(

[M7ammed]

IMO it just needs to be slowly taken up to normal running temp and then left to cool. Each time you drive the car repeat the process but gradually taking it a little further each time so it gets hotter.

Can you explain this more?

[phat///M3]

How long before it gets there Adood?

[M7ammed]

How long before it gets there Adood?

its suppose to be here in 2 weeks, its been a long wait man Wish i could close my eyes and open them and it would be here. Sick of Driving the Lexus RX too soft and big for my liking

[phat///M3]

its suppose to be here in 2 weeks, its been a long wait man Wish i could close my eyes and open them and it would be here. Sick of Driving the Lexus RX too soft and big for my liking

2 weeks is ages when you want something really bad, I feel for you.

[Tilly]

This is only my opinion and people may agree or disagree but IMO If you drive at low revs changing gears as you would normally sort of upto 2.5k ish the engine will reach operating temperature so keep an eye on the temp level and once its hit full temp, drive around for a bit, go home and leave it. The next day or a few hours later once its completely cooled, the next time you take it out you can increase the revs a bit to say 3300 ish or something and do the same again. Repeat the process for a few days til you eventually work your way up. This is the process I've always stuck to on new cars or when I've fit any new exhaust parts and never had problems :)

When things have been hot and they cool down they become stronger but if you heat them up too quickly, they warp and change shape. Hence why you should heat up and cool down over a period of time slowly revving more and more ie hotter and hotter gradually.

Example on my merc... the colour of the exhaust is because of high temperatures of the supercharged lump:

http://img.photobucket.com/albums/v465/SiScort/My%20cars/merc5.jpg

[phat///M3]

Loving the exhaust colour, shame it was on a slow car :D