Diesel fuel is more efficient than gasoline because it contains 10% more energy per gallon than gasoline. But there are a few kinds of diesel fuel: Just as gasoline is rated by its octane, diesel fuel is rated by its cetane, which indicates how easy it is to ignite and how fast it burns. 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. 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.

 

Property

Test Method

Unit

Result

Colour

ASTM D-1500

-

L 2.5

Density  @ 15° C

ASTM D-4052

Kg/L

0.8404

Kinematic Viscosity @ 40° C ASTM D-445 cSt 4.110

Sulphur Content

ASTM D-4294

% wt

0.455

Flash Point

ASTM D-93A

Deg C

66

Water Content

ASTM D-95

% vol

< 0.05

Distillation

IBP
5% Recovery
10% Recovery
20% Recovery
30% Recovery
40% Recovery
50% Recovery
60% Recovery
70% Recovery
80% Recovery
90% Recovery
95% Recovery
FBP
Residue
Loss

ASTM D-86


Deg C
Deg C
Deg C
Deg C
Deg C
Deg C
Deg C
Deg C
Deg C
Deg C
Deg C
Deg C
Deg C
% vol
% vol


170
192
204
237
262
281
298
312
327
345
369
389
393
2.0
1.0