Some clean energy vehicles could need a fuel filtering replacement, according to a new study.
The new research from the National Renewable Energy Laboratory says the problem is not limited to clean vehicles, but could also apply to vehicles with carbon dioxide emissions.
“The main challenge in fuel filters is the way the fluid mixes with the engine, so you end up with a lot of particles,” said study co-author James T. Ripps, a scientist at the university.
“This is particularly problematic for vehicles that have a lot more fuel injected than clean vehicles.”
Ripps and colleagues studied a new fuel filter that’s installed on the fuel tank of the Toyota Camry.
They also looked at the efficiency of the new filter with a standard fuel filter and a new design using carbon dioxide.
Ripp’s group found that using a carbon filter significantly improved fuel efficiency by up to 15 percent, compared with a traditional fuel filter.
But the researchers say they have not yet tested a new carbon filter on a clean car.
“It is important to note that the results presented here were based on a test vehicle, and this new design should not be taken as an example of a typical vehicle fuel filter,” Ripp said.
“We’re still working out the specifics of the actual fuel filter, and there’s still a lot to be determined about what it will actually be.”
Researchers say that even a simple fuel filter is a crucial piece of the puzzle for a clean energy vehicle.
“There’s a lot we don’t know about fuel filters that would make it possible to design them to work in an efficient manner,” said Ripp.
“So it’s important that we understand the components of the filter and how they interact with each other, and how that can improve the efficiency.”
For now, the researchers suggest that consumers who use fuel filters in their vehicles should replace them as soon as they can, as soon a new filter is available.
But it’s not clear if that’s always possible.
“We don’t want to discourage people from getting fuel filters, but we want to make sure that when they’re replacing their filter that they’re also replacing their vehicle’s engine,” Rizzo said.