[94cobra69ss396]

I took it easy on the Cobra and it seems to run well but the Chevelle I raced it right away and it also runs well.

[Shaolin Crane]

Blowers make all things run well

[injdinjn]

I have always used the "varied speed" method. I don't race it or baby it for the first 200 or so miles, but I take it out and getting to and from a place to do a couple of 80-100 mph blasts takes care of the "easy" driving.

[Shaolin Crane]

Yah varied speed. Do 100mph then slow down for the turn, then do 100mph again

[jedhead]

I always used a varied rpm method. I keep the engine running at different rpms for first 200 miles or so. Change the oil, then get the engine to operating temp and do some max power, max rpm runs. Some of the high performance engine come factory filled with Mobil 1 when new. I wonder how this applies with the too little friction theory.

Bob

[Ryridesmotox]

Mine came with mobil1 in it from the factory... GM says to vary speed and take it easy... yea haha right... I didn't buy a fast GM tuner to take it easy. I beat the hell out of my car all the time and she takes it like a champ.

[Kozak]

Originally Posted by Ryridesmotox

Mine came with mobil1 in it from the factory... GM says to vary speed and take it easy... yea haha right... I didn't buy a fast GM tuner to take it easy. I beat the hell out of my car all the time and she takes it like a champ.

You think you're so cool with your factory mobil 1, but you're not...*looks under hood*...I mean, me too. Mobil 1 is the best!

[Damian]

I was always told to break it in the same way you normally drive it.

[enkeivette]

Wot from 2k rpm to 4k rpm, allow to decelerate in gear till 2k. Repeat.

[C5Natie]

I broke mine in hard as well. Didnt beat it up but gave a couple wot and drove it hard. Doesnt use any oil as of today 1yr later. Changed the oil at 1500mi and drove it normal..which is hard anyway. My friend builds lot of motors, old and new school. The first startup takes 15min with breaking oil. He then changes the oil, makes a couple 1/4mi passes, changes the oil again and drives it. No blowby or oil consumption issues. Running it hard early helps the rings expand and seal better. Babying the car just glazes over the cylinders and will always blow oil by. Good rings are important as well.