The Shell Starship (photo), powered by a Cummins X15N natural gas engine and lubricated with Shell Rotella natural gas engine oil, debuted in the NTT INDYCAR SERIES in 2025.
First Natural Gas-Powered Class 8 Truck To Join INDYCAR Fleet; New Emissions Tracking Technology from NTT DATA Announced The NTT INDYCAR SERIES and Indianapolis Motor Speedway (IMS) continue ...
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