Audi will extend the life of diesel cars by approving use of renewable vegetable oil fuel

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The company has approved hydrotreated vegetable oil (HVO) to run on many of their current six-cylinder diesel engines to ensure motorists are not caught out. Audi says the new fuels will make it possible to run combustion engines in a “climate-friendly manner”.

They said this was an “effective means” of cleaning up their fleet both in the short term and after the 2030 petrol and diesel car ban.

Oliver Hoffmann, Chief Development Officer at Audi said the changes would help “optimise” the firm’s “existing portfolio” as well as look to the future.

He said: “With our ‘Vorsprung 2030’ strategy, we’re pursuing the clearly defined goal that all new models we launch worldwide as of 2026 will be all-electric only.

“In this way, we’re making an essential contribution on the road to carbon-neutral mobility.”

“At the same time, we’re optimising our existing combustion engine portfolio for more efficiency and lower emissions.

“One way we’re doing this is by creating the requisite technical foundations for the use of sustainable fuels such as HVO.”

Audi claims the new HVO fuel will offer CO2 reductions of between 70 and 95 percent compared to normal diesel fuel.

Audi says another advantage to HVO fuel is its high cetane rating.

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This will offer more efficiency and “cleaner combustion” compared to regular diesel.

Matthias Schober, head of powertrain development for V-TFSI, TDI and PHEV at Audi said the benefits of this would be “noticeable” to owners.

He said: “As the cetane rating of HVO is around 30 percent higher, the combustibility of the engines is enhanced.

“The positive effects of this are particularly noticeable when cold starting.

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