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Old 09-04-2015, 01:50 PM   #188
tadams72
When is enough ever...
 
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Drives: 2006 Silverado 2500HD CC/SB LBZ
Join Date: Apr 2011
Location: Residence: Chula Vista, CA Home: Billings, MT
Posts: 996
Well I ran Mobil 1 5W30 in my car with great results considering the temps. Hottest I saw was 246 coolant and 300 oil (calculated). Bottom line, she was hot. The oil held up well and when I disassembled the motor the wear was almost non-existent even considering the failure.

I'm moving to Valvoline VR-1 20W50 for track duty on the new motor on the recommendation from ERL but it will be a track only oil change. Going to be pricey but the motor was not cheap so by comparison the oil changes are cheap insurance.
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"Just like farmer engineering. Find the weak link and fix it, then find the next one." Salt Cat Racing
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