If this car runs on full synthetic, then why not just change at 7,500 miles or every year? My Raptor has twin turbos and runs synthetic blend and Ford changes it every 7,500 miles or once every six months. A ZL1 I would imagine requires more changes than our NA motors without FI. Tracking the car would definitely cook the oil more than daily highway pulls and $15k would get me a built LT4.
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