hydrolocked my motor and having a new motor installed - can't remember the recommendations for breaking in ... seems like for the 1st 500 miles avoiding hi RPM's, long distance driving or something and change oil after 3K?

does anyone have advice so i can baby this motor for 2-300k?

 

Can't tell you what your motor manufacturer might say, but I've always changed engine oil after 500 miles (gets anything left over from manufacturing out of the motor), then again after 3000 miles. I don't go to synthetic until at least that second oil change (though some motors come from factory with synthetic). I also baby the motor (hold RPMs down) for that first 3000 miles.

 

Everyone has their opinions about break in procedures, after working at several automotive plants and dealing with a lot of design guys here is what I have been told about most motors:

for the first 500 miles, do not drive at high rpms for extended periods of time, do not drive at any rpm constantly for an extended period of time.

Basically do a lot of around town style driving for the first 500 miles, change the oil and then drive it like you would anyway.

I have heard from some to drive it like you stole it for the first 500 then change the oil and thats the best thing you can do for a motor, i'm a little more conservative than that

 

Vary the RPM and engine loading a lot.
Getting into the higher revs a little is ok, but don't keep it there for long periods of time.

When I worked in the powersports industry, if we broke them in hard we would usually see a little better power on the dyno, but didn't expect them to live as long.

 

owners manual has a recommendation.

 

beat the snot out of it and change the oil often ... there is more to it ?

seriously tho ... giving it some exercise has been proven to lead to higher compression numbers after break in.

 

who cares? Lifetime warrenty FTW

 

I agree, particularly after a reasonable mechanical break in period, say at least 500 miles and an oil change.

It also appears that exercising the throttle a bit more than normal (at least for me) seems to wake up the each faster. I *believe* (still doing research) the ECM has an adaptive stage on a new engine based on how it is driven.

 

i fully agree if you keep it stock. That is one of my motivating factors for buying a new JK.

However, I already have new gears so that will void the diffs, a lift will like lead to new driveshafts which will void that and maybe the trans and transfer case if I change the connectors. It's not hard to void that warranty with a few well placed mods.

My hat is off to those who can keep their vehicle stock through its lifetime. Unfortunately my addiction for improvement will not resist temptation.

 

Mind if I ask you how you hydrolocked? I just recently did the same thing.