What is high speed diesel fuel?
High Speed Diesel (HSD) HSD is normally used as a fuel in medium and high speed compression ignition engines (operating) above 750 rpm) in commercial vehicles, stationary diesel engines, locomotives and pumps etc.
At what speed is a diesel engine most efficient?
Engine efficiency is defined as the ratio of useful work done to the heat provided, which translates into fuel burned. This boils down to how much work can be completed per gallon of fuel consumed. Typically diesel engines have provided efficiencies between 40 and 50% at speeds up to 1,800 rpm.
What is the difference between Type 1 and Type 2 diesel fuel?
Diesel #1 is also known as winter diesel because it performs better than Diesel #2 in cold temperatures. It has a lower viscosity and is not prone to gel in freezing temperatures. Most stations offer a premium Diesel mix that is blended for local weather conditions. Diesel #2 costs less at the pump.
Which type of diesel is best?
You won’t have to worry about which type to use because all diesel automakers specify Diesel #2 for normal driving conditions. Truckers use Diesel #2 to carry heavy loads for long distances at sustained speeds because it’s less volatile than Diesel #1 and provides greater fuel economy.
What speed uses the least fuel?
The Energy Saving Trust says that the most efficient speed you can travel in a car in terms of achieving the best fuel economy is 55-65mph. Any faster, though, and the fuel efficiency decreases rapidly. For example, driving at 85mph uses 40% more fuel than at 70mph (oh, and it’s illegal too).
What is good diesel consumption?
The generally accepted standard has risen from a consumption of around 8.1 to 7.1 litres per 100km (35-40mpg) in the past to more like 5.6 to 5.1 litres (50-55mpg). As a rule of thumb, vehicles listed at less than 6.0 litres/100km are considered to have ‘good’ MPG.
Are there two types of diesel fuel?
Standard diesel fuel (sometimes called diesel oil) comes in two grades: Diesel #1 (or 1-D) and Diesel #2 (or 2-D). The higher the cetane number, the more volatile the fuel. Most diesel vehicles use fuel with a rating of 40 to 55.