Skip advert
Advertisement

Audi approves V6 diesels for use with Hydrotreated Vegetable Oil 

Renewable HVO fuel reduces CO2 in some Audi models by up to 95 per cent compared with fossil diesel

Audi CleanDiesel TDI badge

Audi has announced that some of its V6 diesel engines have been approved for use with renewable fuels, as part of a drive to reduce the carbon emissions of its internal combustion engined vehicles. 

The renewable fuel approved for use is called Hydrotreated Vegetable Oil (HVO). This is created by collected waste and residue oil that undergoes hydrogenation to make its properties suitable for use in diesel engines. In addition to being more environmentally friendly, this fuel is claimed to be a cleaner and more efficient fuel that enhances engine performance, especially during cold starts. 

HVO can be added to diesel or used unmixed. All Audi vehicles eligible to use this fuel will have an XTL sticker in the fuel cap to indicate the car’s compatibility. XTL is used to indicate compatibility with different types of renewable fuels, the acronym encompasses different ways these fuels can be made. 

Advertisement - Article continues below

The company has said V6 diesel engines with power up to 282bhp in A4, A5, A6, A7, A8, Q7, and Q8 models manufactured from mid-February 2022 are approved to run on HVO fuel. Audi claims the use of HVO reduces CO2 emissions by 70 to 95 percent compared to diesel. 

This announcement is part of an ongoing plan to use more synthetic fuels and reduce carbon emissions. At the start of March new Q5s and A6 Allroads will be included in the HVO lineup and some Volkswagen Touareg models will be able to use this fuel too. 

In Europe renewable fuels like HVO are more prevalent than they are in the UK. Since June 2021 the 4-cylinder diesel engines in Audi A3, Q2 and Q3 have been compatible with this fuel. Sweden, Denmark and Italy have been the countries with the greatest demand for engines that can use HVO. 

Learn more about biofuels here...

Skip advert
Advertisement
Skip advert
Advertisement

Recommended

KGM agrees deal to develop ‘crucial’ hydrogen engine
SsangYong Musso Saracen - front tracking

KGM agrees deal to develop ‘crucial’ hydrogen engine

Korean company pairs up with French firm for hydrogen powertrain that could be used in a future pick-up
News
13 Feb 2025
Audi to focus on luxury with posher A8 and new SUV flagship
Audi Grandsphere - Munich front

Audi to focus on luxury with posher A8 and new SUV flagship

Audi is heading further upmarket with luxurious new cars and focus on exclusivity
News
13 Feb 2025
New names for new Audis: German brand tinkers with model range yet again!
Audi A6 Avant - 'A6' badge

New names for new Audis: German brand tinkers with model range yet again!

Odd numbers for ICE cars and evens for EVs are no longer in the plan as Audi backtracks on its naming strategy
News
3 Feb 2025
On-street electric car charging gets £55million Govt. funding boost
EVs charging on the street

On-street electric car charging gets £55million Govt. funding boost

The UKs National Wealth Fund invests government cash in Connected Kerb
News
29 Jan 2025

Most Popular

New Renault Clio to shun electric power and stick with petrol and hybrid options
Renault Clio design render - front

New Renault Clio to shun electric power and stick with petrol and hybrid options

Renault’s sixth-generation Clio hatchback will get a clean look and hi-tech kit, and our exclusive images show what it could look like
News
12 Feb 2025
Car Deal of the Day: VW Golf GTI hot hatch legend for a very cool price
Volkswagen Golf GTI - front corner right

Car Deal of the Day: VW Golf GTI hot hatch legend for a very cool price

The Golf GTI has skilfully combined racy performance with everyday useability for nearly 50 years. It’s our Deal of the Day for 10 February
News
10 Feb 2025
The small petrol car lives! Pint-sized Fiat Pandina due in 2027
Fiat Panda Cross - front static

The small petrol car lives! Pint-sized Fiat Pandina due in 2027

Fiat will build a new city-sized Pandina based on the new 500 platform, bringing a proper, petrol powered A-segment city car to market as early as 202…
News
12 Feb 2025

Find a car with the experts