I've been searching for threads about proper break-in for the engine and i have yet to see anyone say dont go over ____ RPMs. I was just wondering what RPM people think they should stay under during the engine break-in period. Personally I shift @ ~3000 rpms but I do go right below 4000 rpms on the freeway since thats the only way to go ~70-75mph. I also followed the manual by varying the speed in which I drive constantly, and whatever other stuff it says. I also taken into consideration the controversial way of breaking in an engine on http://www.mototuneusa.com/break_in_secrets.htm and accelerate hard in 2nd-5th gear while keeping the car under 3000-3500 rpms. Related to this way to break-in your car... I was also wondering what it means to accelerate hard as said in the "Break in secrets" page... Does it mean WOT (Wide open throttle/gas pedal to the floor)? or like 3/4 throttle? or 1/2 throttle?

So... all in all, i'm asking two questions. 1. What RPM would you stay under during the engine break-in period? 2. What throttle position do you consider accelerating hard as noted in "Break in secrets."

Thanks for your input

For RPM's I'd say don't exceed 4000 unless really necessary (merging in fast traffic, etc). As far as hard acceleration, approximately 3/4 throttle is considered to be hard by all the other people I asked, as well my being my opinion. HIH.

Bump

you know that's a really good question to which I have no answer! I will be receive my 5spd xA soon, and just cruising on the highway would keep the revs high. . . does this mean I can't hit the highway for 500 miles? And it kinda will take 3/4 throttle for a lot of stuff that isn't city driving (not a complaint by any means) but most of my daily driving is on the freeway so. . . what to do what to do? :?

The engines are run at the factory, the rings are seated and the bearings have the correct tolerences on assembly. The old ways of breaking in an engine are no longer required.

Max RPM=factory redline. Do not worry about hurting our engine, you won't unless it is faulty from the factory.

My xA has 12,000 mi on it since December and runs great with absolutely no problems. It's an auto so getting on a freeway safely requires a heavy foot to keep from getting run over from behind. My car has seen redline almost every day since I bought it.

But don't listen to me, I'm just a "peep", I've only been driving 33 years, owned 60 cars and modified and raced most of them. I make it a point to keep up with the latest in engine technology.

ken

^^ Agreed with him 8) , as I was reading a couple site on break-in period for new cars and whatever he says was in it.

I second that...i have redlined my car almost every day ive owned it...actually, prob numerous times each day..i drive between 100 and 200 miles a day too....and my engine is as sound as it gets. New cars havve new technologies. And Takumi jr, where do you live...i work at TGI Frodays in Seekonk MA, i see a Blue xA drive by occasionally...would that be you?

Thanks for the info guys... but i'm still wondering why does the owners manual say to run it easy for the first 1000 miles. Any answer for that? Is this a way to get young drivers scared of driving fast?!? :twisted: or is it just cause they dont want to change the conventional way of breaking in a car? :idea:

*doesn't feel bad about "opening her up" the day i got the car...

read this
http://www.mototuneusa.com/break_in_secrets.htm
these principles apply to all 4 stroke engines
u may learn something

read this
http://www.mototuneusa.com/break_in_secrets.htm
these principles apply to all 4 stroke engines
u may learn something

Yea, I did read it... *hint hint* look at the first post (which is mine) and look at the link I included *hint hint*

read this
http://www.mototuneusa.com/break_in_secrets.htm
these principles apply to all 4 stroke engines
u may learn something

Yea, I did read it... *hint hint* look at the first post (which is mine) and look at the link I included *hint hint*

whoa my bad....good man....at least someone here keeps up with the new info....

I think most manufacturers keep the "drive it easy" in the manual because that's better than saying "drive it like a f***ing lunatic!" :D Mototune makes good sense, I feel those principles apply more to high performance bikes than autos though, where 1% gain makes a difference. I'm not worrying about a break-in for mine, but then I'm a granny when it comes to driving for the most part, I like saving money on gas. Oops, time to change my Depends... :oops:

Takumi jr, where do you live...i work at TGI Frodays in Seekonk MA, i see a Blue xA drive by occasionally...would that be you?

I live in a city called Revere and I don't think I'm anywhere close to Seekonk, but you can catch me on Route 1/ 128 and 114 everyday though.


P.S. its good practice to run it easy (under 4k) for the first 500 miles then after that you can redline it.