2024 Ford Bronco Wildtrak with 2.7L ecoboost. Was run on Mobil 1 Advanced Fuel Economy (AFE) 0w-30 and Costo 90 octane this interval. Vehicle had 3951 miles and 2 months since last oil change and 7028 miles/6 months since new. 100C Viscosity right at the minimum for Xw-30 grade but I guess...
