Typical Analyses and Properties of Fuel Oils
| Grade | No. 1 | No. 2 | No. 4 | No. 5 | No. 6 |
| Type | Distillate (kerosene) | Distillate | Very Light Residual | Light
Residual | Residual |
| Color | Light | Amber | Black | Black | Black |
| API gr., 60 F | 40 | 32 | 21 | 17 | 12 |
| Sp. gr. 60/60 F | 0.8251 | 0.8654 | 0.9279 |
0.9529 | 0.9861 |
| Lb/US gal, 60 F | 6.870 |
7.206 | 7.727 | 7.935 | 8.212 |
| Viscos., Cp, 100 F | 1.6 | 2.68 | 15.0 | 50.0 | 360.0 |
| Viscos., Saybolt Univ., 100 F | 31 | 35 | 77 |
232 | |
| Viscos., Saybolt Furol, 122 F | 170 | ||||
| Pour point, F | Below zero | Below zero | 10 | 30 | 65 |
| Pump. T, F | Atmos. | Atmos. | 15 min. | 35 min. | 100 |
| Atom. T, F | Atmos. | Atmos. | 25 min. | 130 | 200 |
| Carbon residue, % | Trace | Trace | 2.5 | 5.0 | 12.0 |
| Sulfur, % | 0.1 | 0.4-0.7 | 0.4-1.5 | 2.0 max. | 2.8 max. |
| Ox. & N, % | 0.2 | 0.2 | 0.48 | 0.70 | 0.92 |
| Hydrogen, % | 13.2 | 12.7 | 11.9 | 11.7 | 10.5 |
| Carbon, % | 86.5 | 86.4 | 86.10 | 85.55 | 85.70 |
| Sediment & water, % | Trace | Trace | 0.5 max. |
1.0 max. | 2.0 max. |
| Ash, % | Trace | Trace | 0.02 | 0.05 | 0.08 |
| Btu/gallon | 137,000 | 141,000 | 146,000 | 148,000 | 150,000 |