I guess you can run it in a slightly different engine cycle called the Atkinson cycle, That's one of the tricks that hybrid vehicles used to increase their effi

I guess you can run it in a slightly different engine cycle called the Atkinson cycle, That's one of the tricks that hybrid vehicles used to increase their efficiency But if you drive like a leadfoot that doesn't really work cuz then usually the hybrid systems fall back on the gasoline engine for additional torque and it goes to the normal gas cycle when it does that and you lose the efficiency