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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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The Project: 2011 Camaro 2SS/RS (ERL 427 Superdeck NA Monster)
"Just like farmer engineering. Find the weak link and fix it, then find the next one." Salt Cat Racing
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