Hi,
This is my most recent UOA for my 1996 Chevy Silverado. This sample is Valvoline Maxlife SN 5W-30. The previous fills were PP 5W-30 SM. I switched to Valvoline to try and slow the leaking rear main seal until I can fix it. Let me know what you think!
This is my most recent UOA for my 1996 Chevy Silverado. This sample is Valvoline Maxlife SN 5W-30. The previous fills were PP 5W-30 SM. I switched to Valvoline to try and slow the leaking rear main seal until I can fix it. Let me know what you think!
![UOA.jpg](http://i726.photobucket.com/albums/ww270/summersux/UOA.jpg)
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