Checked against the Marketing Discipline Guidelines 2024 (Ver. 1, effective 24.10.2024) on 31 October 2026. Published by MDG Services on 31 October 2026.
The same range in every state
MDG 2024 prints no range for any state MDG 7.6. A pump in Assam, Punjab, Rajasthan, Haryana or Bangalore works to the same limits. What changes from place to place is the reading, not the limit.
| Where or when | What changes | Range that applies |
|---|---|---|
| Any state, any season | Nothing in the printed range | Petrol 720–775; diesel 810–845; B8–B20 blends 820–860 MDG 7.6 |
| A hot afternoon, for example on the plains of Rajasthan, Punjab or Haryana | The hydrometer reads lower. Convert to 15°C first MDG 1.2(iv) | The same |
| A cold morning | The hydrometer reads higher | The same |
| Diesel processed from Assam crude | A Government of India notice may guide any relaxation of the diesel range, and its time frame MDG 7.6 | Ask your oil company |
General knowledge, not MDG text: warm fuel reads a lower density and cold fuel a higher one. For example (a made-up diesel, worked out with the 15°C calculator): a diesel of 829.0 kg/m³ at 15°C reads 836.0 on a 5°C morning and 811.4 on a 40°C afternoon. Both convert back to 829.0. The fuel did not change. See why density changes with temperature.
What the Assam crude footnote says
The footnote sits in the diesel table, against the 810–845 figure MDG 7.6. It appears again in the Annexure 5 test table and in the diesel mobile lab report MDG Annexure 5 MDG Annexure 13a. It says any density range relaxation and time frame for fuel processed from Assam crude "may be guided by the notifications issued by Government of India" MDG 7.6.
What it does and does not say:
- Diesel only. It is on the 810–845 figure. It is not on petrol and not on the 820–860 blend figure.
- "If any". It does not promise a relaxation.
- Fuel, not pumps. The words are about fuel processed from Assam crude, not about every pump in a state.
- No figure. MDG prints no relaxed number, no end date and no list of places.
For the range in force, ask your oil company. General practice, not an MDG rule: keep its answer with the date. The tanker check against the invoice, within ±3.0 kg/m³, has no state exception MDG 1.2(iv). The other ranges are on the density range page.
Questions dealers ask
01Petrol density in Assam: is it different?
No. MDG gives petrol 720–775 kg/m³ at 15°C for every state, and its Assam crude footnote is not attached to the petrol figure MDG 7.6.
02What is the diesel density range in Assam?
MDG prints 810–845 kg/m³ at 15°C for BS VI diesel up to B7, and 820–860 for B8–B20 blends. A footnote says any relaxation for Assam crude fuel may follow Government notices, so ask your oil company which range is notified now MDG 7.6.
03Diesel density in Punjab, Rajasthan or Haryana: is the range different?
No. MDG prints no range per state: 810–845 kg/m³ at 15°C for diesel up to B7 and 820–860 for B8–B20 blends MDG 7.6. Convert a hot-afternoon reading to 15°C before you compare it MDG 1.2(iv).
04What is the petrol density in Bangalore?
MDG has no city figure. The limit is 720–775 kg/m³ at 15°C everywhere MDG 7.6. The density of your own lot is on its invoice MDG 2.2.1(iv).
Read the official text: Marketing Discipline Guidelines 2024 (PDF on Bharat Petroleum's website) (also published on iocl.com).
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