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Old 11-17-2007, 06:26 AM
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Break in oil flat tappet cam

I'v done a bunch of searches on here and go ten all kinds of ideas for what to use as a break in oil. I think I am going to use Valvoline VR1 racing oil, here is the link to it and also includes the break down of zinc in it. Also is this the break in oil I read about on here? Also can this stuff be just dumped in with the oil or does it need to be smeared on the cam cuz the motor is already together I just want to put oil in the pan and be able to spin the pump every once in a while because it may be about a month before I get to break it in. Thanks a ton for the help.

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Old 11-17-2007, 07:00 AM
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I would buy some breakin additive from the chevy dealer for extra piece of mind.
If it was me I would use the shell ROTELLA oil as breakin oil.
this oil got the highest zinc content.
stay away from anything synthetic as a breakin lube!
also dont use high detergent oil for breakin.
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Old 11-17-2007, 07:05 AM
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Use the VR1,Rottella and all other deisel oils were reformulated to remove a lot of zinc recently due to 2007 epa regs for deisels.
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Old 11-17-2007, 08:43 AM
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GM EOS has been re-formulated with less zinc.

Shell Rotella oils with the "Triple Protection" logo on the label have reduced levels of zinc.

Valvoline diesel and racing oils still have the higher levels of zinc.

Comp Cams #159 break-in lube is the best additive now that EOS is watered down.

Brad Penn, Joe Gibbs racing, and others have oils specifically formulated for flat-tappet break-in.

I use Crane moly cam lube on the lobes, lifter bottoms and cam gear and Comp Cams 159, and Brad Penn oil for my engine's break-in period.

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Old 11-17-2007, 09:55 AM
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cam break in.......

Hi,i have only used STP on engines ive built.(approx 35) i always brush cylinders,pistons and rings,and cam and lifter,scrank and bearings. then fill pan with Rotella. (before zinc was removed) then pre oil with a drill on oil pumprod. ive never had a problem. (sure smoked when first started)
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