Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 250; Flight Crew Total 15400; Flight Crew Type 135
Communication Breakdown; Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Fuel Issue
Flight Crew Diverted; Flight Crew Inflight Shutdown; Flight Crew Landed As Precaution
Aircraft; Human Factors
Left engine failed due to fuel starvation. Was able to divert and land at ZZZ before the right engine failed. Upon further research; discovered that the FBO at BFI was not fueling the aircraft to the amount of requested and since the fuel gauges were not accurate; my fuel calculations were worthless.
Pilot reported aircraft received less fuel than requested resulting in a diversion as fuel gauges were also unreliable.