new motor break in?

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Mar 17, 2013 | 10:28 AM

dirty94SS

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From: Pg, Maryland

new motor break in?

I just dropped a new lq4 in running regular 5w30 oil.. I have 200 miles on it now... can I switch to GC 0w30 or what oil do y'all suggest I run.

Mar 17, 2013 | 12:50 PM

2000PewterT/A

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Run 5w30, pretty much any good synthetic will cover what you need. I don't want to start a oil war which seems to happen here allot.

Mar 17, 2013 | 12:57 PM

leeluther252

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From: Kingwood, tx

Quote:

Originally Posted by 2000PewterT/A

Run 5w30, pretty much any good synthetic will cover what you need. I don't want to start a oil war which seems to happen here allot.

agreed, no need to start an oil war. As for your question though, 200 miles is fine. Once the rings seat, which they should have, you can run what you want. Within reason of course. I usually use 5w-30 synthetic as well.

Mar 17, 2013 | 01:05 PM

96capricemgr

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Did you make any specific effort to seat the rings?

Mar 17, 2013 | 01:28 PM

badazz81z28

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I'm still running break in oil. I have about 500 miles on mine.

There is no need to run a super thick oil or what ever tips and tricks you read online. If your bearing clearances are at OEM spec, stick with 5W30 as recommended by GM .

I also feel 200 miles is not enough if you have just been driving around. I have beaten mine a little and even had it on the dyno. I'm still waiting a few more miles to put synthetic in.