TDFrying Oil: Audi Makes Its V6 TDI Engines Compatible With Vegetable Oil-Based Fuel | Carscoops carscoops
Audi says that HVO enables CO2 reductions of between 70 and 95 percent compared to normal diesel. The fuel can be made from residual and waste materials, such as waste cooking oil from the food industry or residues from agriculture. These oils are converted into aliphatic hydrocarbons, which modifies the properties of the oils to make them useable in diesel engines and gives them a higher cetane rating than traditional fuel.
“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,” said Matthias Schober, head of powertrain development for V-TFSI, TDI, and PHEV at Audi. “We tested the effects on various components, the performance, and exhaust emissions in specific validation runs before granting approval.”.
The Volkswagen Group is also experimenting with other alternative fuels, like e-Fuel. This synthetic gas has
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