Quote:
Originally Posted by wired
I guess both major camps have some solid arguments.
- Start slow, ramp up over the first 1k miles or so.
This allows various car parts to "settle" properly.
- Break it in the way you expect to drive it later.
This way, parts get "used" to the way you're driving.
I believe the truth is somewhere in the middle. I did take it easy in the beginning, but I also visited some mountain roads for some spirited driving. I did not go all out, but I gave the car a taste of what to expect in the future.
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first of all, cars don't get "used" to the way somebody drives. The argument for and major end-goal objective of a hard break-in is to properly seat the compression rings to prevent excessive blowby..
http://www.ntnoa.org/enginebreakin.htm
fortunately automotive engine manufacturers have realized the need for a PROPER break-in procedure for THEIR engines before they hit the consumer. This is indeed rocket science folks and not all systems are alike. Therefore, the engine manufacturing and assembly plant knows the best way to break in an engine and does so to save the company money in the long run by supplying engines that are uniformly and accurately broken in.