Narrative:

During takeoff and climb out; smelled a strong odor of exhaust. I thought it was from an [airliner] flight that landed just prior to us taking off. Odor continued into climbout. APU was running; so we turned it off just in case it was coming from it. Crew made a decision to return to ZZZ. On downwind; we turned press source off and odor started to dissipate. Landed at ZZZ without incident. After landing both crewmembers felt a little nauseous and determined it would not be safe to do the next passenger trip.

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Original NASA ASRS Text

Title: CE-560XLS flight crew reported exhaust type fumes during takeoff and initial climb. Crew executed a precautionary uneventful normal air return. Flight crew reported physiological issues.

Narrative: During takeoff and climb out; smelled a strong odor of exhaust. I thought it was from an [airliner] flight that landed just prior to us taking off. Odor continued into climbout. APU was running; so we turned it off just in case it was coming from it. Crew made a decision to return to ZZZ. On downwind; we turned press source off and odor started to dissipate. Landed at ZZZ without incident. After landing both crewmembers felt a little nauseous and determined it would not be safe to do the next passenger trip.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.