Well as a matter of fact the VW diesel compatibility with biodiesel fuel is excellent. Models that use the fuel most effectively have a TDI engine. These are the Jetta, Jetta Wagon, Golf, New Beetle and Passat. The VW 1.9L TDI with a 5 speed gets between 42 and 61 mpg and the automatic VW 1.9L TDI gets between 37 and 57 mpg. In addition to excellent gas mileage, the TDI engine has one of the best records of efficiency and clean emissions when run with biodiesel fuel. Newer TDI engines have a higher injection pressure than those made in the 1980's. Because of this they don't like poor quality fuel. But because biodiesel fuel is of high quality, these newer TDI engines use it very well. In the United States it is different because Volkswagen does not encourage the extensive use of biodiesel in the cars. This is because substandard fuel or higher-level biodiesel fuel blends may actually damage your engine or fuel system and this may not be covered under warranty. 1. If you are purchasing a used vehicle ask about its history, usage, and any major repairs. You also want to know how often the car was serviced. 2. Talk to people who currently own a VW diesel car and run it using biodiesel fuel. Feel free to ask them if they have had any problems. 3. If you buy an older car and plan on running it on biodiesel fuel, be aware that you may need to make some changes to the fuel filter and the existing fuel hoses. VW is not the only car manufacturer that makes cars to successfully run with biodiesel fuel. Other cars you may want to consider are Audi, Skoda and SEAT.
To find out, we test a £28,835 1.5 TFSI S tronic in S line trim. Unlike the Golf, our A3 didn’t have adaptive dampers, and on £325 18-inch alloys the ride feels crashier than the VW’s. It suffers from a similar problem as the Mercedes at lower speeds, but doesn’t feel quite as busy over broken roads or fidget as much in town. Once you get out on to more open, flowing roads the A3’s chassis set-up makes more sense, because it’s direct and responsive with plenty of stability. Due to the MQB underpinnings the steering feels similar to the VW’s. But it doesn’t have a dynamic edge over the Golf and can’t match it for comfort. The A3’s 1.5 TFSI unit did deliver performance to match the VW, though, with the low-down torque morphing into a keen top end that, for a regular engine, encourages you to exploit the performance. Testers’ notes: It’s a shame that you have to spec the £1,395 Technology Pack on S line trim to get the Virtual Cockpit. It’s not available as a standalone feature, as it is with the Golf. The Golf asserts its authority again thanks to its all-round ability.
If a change in height is necessary, the angle of the headlights automatically alters to maintain optimum road illumination. With 750Nm of torque on tap and a zero to 100km/h time of 7.8 seconds, pulling a load is not going to be a challenge. Windsor was quite a reasonable load but the Touareg handled it with ease. It would be fair to say that the V10 TDI is one of the few vehicles that would be comfortable with a three-tonne plus load. With the abundance of power available, overtaking is quick and safe while steep hills seem to flatten out. As VW is very security and safety conscious, it even provided a special locking pin to retain the ballmount. After removing the lock of the end of the pin, it is still necessary to unscrew the pin from the hitch receiver before the ballmount can be removed. With the tools provided, this can be done quickly and easily.
