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Old July 25th, 2012, 01:53 PM   #6
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Originally Posted by addicted View Post

This is their newest high zinc product.

This is what I run in the sister in laws '04 WJ with 4.0 that was the wifes DD since new. It has over 210K on it. A couple lifters did their ticking thing at 180K. I Replaced the lifters, cam and other, 'while i'm in there' things. The cylinder walls still had the cross hatching in them and all the bearings had considerably little wear.
I run the same 10w40 in my ZJ, have since break-in on the new engine (~30k miles) with no issues so far.
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