MTA New York City Bus 2002 Orion VII CNG 7585 [ Audio Recording ]

Not the best sound clip, HVAC was on full blast and the sound was somewhat drained out. Tried to put the recorder in a decent spot so here ya go. This is my first audio recording of a Orion VII CNG.
Detroit Diesel Series 50G
Allison B-400R WTEC

[@trackwerkOG]

It sounds better with the A/C on with these buses... Makes the engine moan.

[@zhx2365]

It sounds like a Detroit Diesel Series 60 when the HVAC is on .