Braking in oil

supra1jz

New Member
Apr 14, 2008
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Well guy I'm almost done with my swap after 3 year and a new bottom end and all new seal and redone head what is the best oil to brake in the 1jz and how long do I keep it in the motor before change it out?
 

tlo86

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Jul 24, 2005
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did you use assembly lube? i have seen zinc rich blah blah break in oils which is a newer thing' i have a lot of re-builders say they wont warranty their work unless you use a break in oil of some kind, royal purple comes to mind but most companies make it.

i have seen tools to inject oil in to pre lube your engine to avoid dry starts too but if assembly lube was used no need really~
 

tlo86

Ninja Editor 'Since 05'
Jul 24, 2005
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so you cant go wrong with a break in oil ;) it tells you on the bottles the intervals.
 

BrandonW

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Jun 25, 2007
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i used some info from this thread, i had another but cant find it
http://www.supramania.com/forums/showthread.php?t=98885&highlight=7mgte+afm

i did the idle for a while changed oil and filter, drove it about 50 miles (some nice hills coming home from the shop to pull vacuum) did another oil and filter change then took it to about 500 or 1000 and did it again

use some straight 30 weight oil i actually messed up and used 10w30 LOL supertech from walmart but so far everything seems to have went fine, then i did a normal oil change and took it to about 3k then switched to the german castrol at about 5k

no smoke or oil loss since and im at 15k maybe i just lucked out or did close enough to right
 

hvyman

Dang Dude! No Way Man.
Staff member
Apr 17, 2007
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Just use 30w oil for the first 50 miles then switch to 5w30.

Pull efi fuse and crank engine over for 1 min then let starter cool for 30 sec. Do that like 5-6 times and then start and let idle make sure no leaks then go drive it.
 

Radial

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Aug 20, 2011
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Norway
supports hvyman's suggestion.... just remove the spark plugs as well, as there will be no compression and close to NO load on the bearings.
 

te72

Classifieds Moderator
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Mar 26, 2006
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hvyman;1870978 said:
Pull efi fuse and crank engine over for 1 min then let starter cool for 30 sec. Do that like 5-6 times and then start and let idle make sure no leaks then go drive it.
There has got to be a thread in the oil subsection that covers this, if not three threads. ;)

Hvyman's advise is good advice too, make sure your battery is in good shape, but this gets everything lubed up nicely before first firing up. Never thought to pull the spark plugs like some suggested, but that seems like a good idea too.