"At the moment the station has the 91 octane fuel, the 89 and the diesel as well out of service. So, they're currently only dispensing the regular grade gasoline," said Weights and Measures inspector Renee Cortez.
Weights and Measures was called to test the gas after Juhui Yoo and her husband ran into issues with their 10-day-old car after they visited the Shell station.
"We used grade 91 like we always do because it's required. The very next time we tried to start the car up, it just stalled. In their service report form, they actually wrote there was diesel mixture in the gasoline," said Yoo.