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Best oil for rebuild break-in ??

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Old 11-11-2010, 08:59 PM
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Best oil for rebuild break-in ??
Hi folks !!! I just had my engine rebuilt. I have an 02 wrx with 2.0 ej20. Question is...what is the best oil for initial break-in? I have heard that I should have an oil without zinc, but an internet search leads me to many, including Lucas Oil & Royal Purple, that have "break-in" oils that have zinc. I'm pretty sure I should have a heavier, non synthetic oil. Also, can anyone give me any info on the break-in procedure, at the shop and also the first 1000 miles of driving? My "mechanic" doesnt appear to posess this knowledge, so I'm going to rely more on you kind folks to get useful info. THANKS !!!
Last edited by 02BlkBugEye; 11-11-2010 at 09:01 PM. Reason: misspell
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Old 11-11-2010, 09:45 PM
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I used Valvoline VR-1 racing oil. It is a non synthetic, and does have zinc. I used a 10-40 to break my motor in... Great oil.
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Old 11-11-2010, 10:12 PM
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i used brad penn "break-in" oil.
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Old 11-11-2010, 10:13 PM
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i'm pretty sure i have some left over if you want some.
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Old 11-12-2010, 12:00 AM
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Originally Posted by blue04WRX
I used Valvoline VR-1 racing oil. It is a non synthetic, and does have zinc. I used a 10-40 to break my motor in... Great oil.
That's what I used!
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Old 11-12-2010, 12:14 AM
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I use VR1 10w30 non synthetic. VR1 is goood sheit.
I bought a case of 12qts for $59.00 bucks awhile back at Napa
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Old 11-12-2010, 07:45 AM
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Old 11-12-2010, 09:57 AM
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We primarily use Valvoline VR1 for break-in. A decent zync content is important for breaking in new bearings, cams, buckets, etc.

Thanks
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Old 11-12-2010, 11:56 AM
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We have broken in engines using full synthetic oil with no adverse effects.
The key is zddp and proper break in procedure.
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