On Thursday, Ford Motor said it had hired experts to investigate the fuel economy and testing procedures after employees had worried, and did not know whether to correct the data provided to regulators or consumers.
The problems involving Ford's testing processes do not involve the use of so-called defeat devices – hardware and software designed to deceive the public emissions tests, Kimberly Pittel, Ford's Sustainability, Environment and Safety Technology Executive Vice President, told Reuters.
Car manufacturers since the fall have been investigating concerns raised by employees that erroneous calculations were used to translate test results into odometer and emission data sent to regulators, Pittel says.
Ford said it was considering changes in the process it uses to develop fuel economy and emissions figures, "including engineering, technical and management components."
Ford shares deep sli Ford has hired the law firm Sidley Austin to conduct an independent survey of possible discrepancies in calculations used to produce emissions and fuel economy figures, Pittel said. The company uses an independent laboratory to perform testing.
U.S. and California regulators have cracked down on car manufacturers for emissions cheats after revealing in 201
"We have voluntarily shared this information" with the US Environmental Protection Agency and the California Air Resources Board, Pittel said. Ford informed the bodies this week, she said.
EPA said in a statement on Thursday that information from Ford's investigation is "too incomplete for EPA to reach any conclusions. We take the potential issues seriously and follow up with the company to fully understand the circumstances of this information."  The survey started with the testing of the Ranger pickup truck in 2019, and the company expects data back next week, Pittel said.
She said it was not clear what impact that rating would have on advertised odometer or fuel economy data sent to regulators, nor is it clear how many vehicles can be affected if Ford is to revise the data.
"We cannot predict the outcome and cannot assure us that Ford will not have a significant negative impact on us," Ford told investors in a regulatory filing Thursday.
"We'll go where the investigation takes us," Pittel said.
Ford has become embarrassed by failures in fuel economy requirements. In 2013, the automaker cut by seven miles per gallon alleged fuel economy for its C-Max hybrid model after complaining that true mileage mileage did not match alleged fuel economy. In 2014, Ford reduced fuel economy ratings for six other models and offered compensation to customers.