Diesel pre-heat
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Throttle
Turbo-compressors