Just changed oil in 2012 5.0, went from M1 5w20 to RP HPS 5w20. I have read about HPS with additives like zinc to help quiet these Twin Independent Variable Cam Timing (Ti-VCT) engines, but wow, what a difference. Sounds & feels smoother, much more quiet at idle, a lot less ticking. RP claims 12K, but I'll run 10K & report back.
Bama 93 Tune
Airaid Cold Air
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