D1 diesel is a type of distillate fuel oil that falls under the broader category of diesel fuels. Here are some key details:

D1 Diesel Overview

• Composition & Properties:
• Lighter and more refined than D2 diesel.
• Lower viscosity and better cold-weather performance.
• Less energy content compared to D2 diesel.
• Suitable for colder climates due to its lower freezing point.
  
  
• Uses:
• Primarily used in colder regions where conventional diesel (D2) might gel or thicken.
• Often found in off-road applications, generators, and heating systems.
• Can be blended with D2 diesel to improve cold-weather performance.
  
  
• Comparison with D2 Diesel:
• D1 Diesel: Lighter, better for cold weather, lower energy content.
• D2 Diesel: Heavier, higher energy content, more common for vehicle use.
  
  
• Supply & Availability:
• Less common than D2 but available in regions with extreme winters.
• Can be sourced from refineries and fuel suppliers specializing in cold-weather diesel blends.