those "brand new engines" are raped way before they go into a vehicle, in much more harsh conditions. Myself and everyone i know raped their engines from day one and none of those people had any issues with their engine. Those vehicles include 2003 G35 coupe 6MT, 2004 G35 sedan 6mt, 05 pontiac GTO, 2007 GTI DSG, 2007 GTI 6MT, 2006 IS350, 2007 328I, 2002 M3, and many more.

After the day i got my car with only 20 miles on it i went to a canyon run and the rpms were not coming down below 5k for 20 strait minutes. I now have 60k on the car and it runs stronger than ever and burns 0 amount of oil. That brake in Bullsh!t is so old already, i can't believe people still talk about it. Same goes for the other cars, G35 coupe with 50k, GTO with 40k, GTI with 15k, IS350 with 45k, 328 with 20k, M3 with 70k.

 

While I appreciate your experiences from your sampling of drivers who share your driving style, following the manufacturers recommendations has also probably had good results. My experience owning a wide mix of performance cars has been also good following the break-in procedures, so I guess there is no real answer.

On another note, wouldn't the aggressive canyon runs you describe with a brand new car potentially cause brake pad glazing and uneven disc wear?

 

+1 on no answer, but i just find it funny that i still see people saying "OMG! I past 4000 rpm, is my engine damaged". When i see that kind of ignorance i srsly wanna slap them.
It would if u are hard on the brakes. I rarely go all out in the canyons to use my brakes in that frequency. I actually have only done that 4 times out of over 50 runs that i have done.

 

There's no simple answer. For every one person that says play it safe, there's someone else that says go nuts. Even amongst the experts.

The manufacturer has a recommendation, but it's just that a "recommendation". There are lots of recommendations out there that may or may not mean anything.

Basically, do what you're comfortable doing. Myself, I drove the car like I stole it off the lot and had a damn good time with it

 

The only reason the dealer doesn't recommend the 'hard' break in method is because it involves aggressive driving, and if you injured yourself or others while attempting it they could be found liable. Hence the 'go really easy' break in suggestion.

I used varying amount of throttle and gradually raised the RPM's over the first 20 miles and included multiple pulls to redline.

 

Where did you get that? The only reason the dealer doesn't recommend the 'hard' break in method is because there is no official "hard" method and the manufacturer of the car they resell and service says otherwise in all the documentation. Most dealers could care less what you do when you leave the dealership property and would welcome you back to the service department as soon as possible - it's where the store makes it's real money.

 

Did you even read the MT article you linked ? Cuz it sure doesn't verify the theory of "hard" break-ins. If anything, it saids it either doesn't work or isn't necessary on automotive engines:

"For answers, I rang up long-time GM engine guru Dave Lancaster, and he agrees that in smaller, low-cost air-cooled engines (which expand and contract more as temperatures change) such a technique might indeed pay off. But the microfinished bores, high-tension rings, and precision-build tolerances in today's automotive engines yield excellent ring sealing from new, so any change in power output attributable to such a radical procedure would be miniscule if measurable at all."

 

^at the same time no where there it says that if u go over 4000rpm on ur 2008 G35 the motor will blow. that is the whole point of people such as myself apposing BS "Break in" period.

 

Hey guys,
I got the car last week and its amazing. I didn't follow the break in as the dealer told me it was factory broken in already.Its running great and ill post some pictures soon!

 

Thats why I say, lease the beast, and let her rip... JK...

 

fvck it and drive, you have a warranty rite... lol when I get my evo brand new I broke it in for 500 miles then started the drive....

BTW when I looked at the thread title I thought you meant your G35 got broken into.