Checked against the Marketing Discipline Guidelines 2024 (Ver. 1, effective 24.10.2024) on 26 October 2026. Published by MDG Services on 26 October 2026.
The names, one line each
| Name | What it is | Clause |
|---|---|---|
| MS | Motor Spirit, petrol. MDG's test table says Motor Spirit and Motor Gasoline are the same product | MDG 2024, introduction MDG 7.6 |
| Petrol grades | The table lists MG, E5, E10, E12, E15 and E20, and MG 91, 95 and 98 with minimum octane numbers of 91, 95 and 98. General knowledge, not MDG text: the number after E is the ethanol share in percent | MDG 7.6 MDG Annexure 5 |
| HSD | High Speed Diesel. The table also calls it automotive diesel fuel | MDG 2024, introduction MDG 7.6 |
| Diesel grades | BS VI up to B7, and biodiesel blends B8–B20. General knowledge, not MDG text: the number after B is the biodiesel share in percent | MDG 7.6 |
| Branded fuel | Fuel sold under an oil company's brand. Selling normal MS or HSD as branded, on purpose, is major. A branded sample must still meet at least the IS minimum | MDG 5.1.10 MDG 8.3 MDG Annexure 5 |
| XP95, Speed, Power | General knowledge, not MDG text: oil company brand names for premium fuel. MDG names none of them, so ask your oil company which grade a brand is | None |
| SKO | Superior Kerosene Oil, supplied under the Public Distribution System. See kerosene dealers | MDG 2024, introduction MDG 2024, chapter 6 |
| LDO | Appears only in "SKO-LDO dealerships". Light diesel oil (trade reading) | MDG 5 MDG 8.10 |
Density at 15°C
| Fuel | kg/m³ | Clause |
|---|---|---|
| Petrol (MS), every BS VI grade MDG names | 720–775 | MDG 7.6 |
| Diesel (HSD), BS VI up to B7 | 810–845 | MDG 7.6 |
| Diesel blended with biodiesel, B8–B20 | 820–860 | MDG 7.6 |
These are the lab ranges, not your daily test: see the density range and what density is.
Staff names and short forms
| Name | What it is | Clause |
|---|---|---|
| DSM | The circular lists CA/DSM/CSA among the staff who man the dispensing units, without spelling them out. MDG 5.1.17 speaks of "Driveway Salesmen". DSM is read as driveway salesman (trade reading) | Circular 20.03.2025 MDG 5.1.17 |
| CA, CSA | Not spelled out in the circular. Ask your oil company | Circular 20.03.2025 |
OMC, RO, DU, NANO and the rest are in the glossary.
Questions dealers ask
01What is the HSD full form at a petrol pump?
High Speed Diesel, the diesel sold at the pump. MDG's test tables also call it automotive diesel fuel MDG 2024, introduction MDG 7.6.
02What does MS mean at a petrol pump?
Motor Spirit, which is petrol. MDG's table says Motor Spirit and Motor Gasoline are one and the same product MDG 7.6.
03What is the HSD density range?
810–845 kg/m³ at 15°C for BS VI diesel up to B7, and 820–860 for B8–B20 blends MDG 7.6. A footnote leaves any relaxation for Assam crude to Government notifications: ask your oil company. See the density range.
04XP95 meaning: is it a petrol grade in MDG?
General knowledge, not MDG text: XP95 is an oil company's brand name for premium petrol. MDG does not name it. Its petrol grades are MG 91, MG 95 and MG 98 MDG 7.6, and it does not say which brand matches which grade, so ask your oil company.
05DSM petrol pump full form?
MDG does not spell DSM out. The circular lists CA/DSM/CSA among the staff at the dispensing units Circular 20.03.2025, and 5.1.17 speaks of "Driveway Salesmen" MDG 5.1.17. DSM is read as driveway salesman (trade reading).
06What is SKO?
Superior Kerosene Oil, supplied through the Public Distribution System; its dealers are also called wholesale dealers MDG 2024, introduction MDG 2024, chapter 6.
Read the official text: Marketing Discipline Guidelines 2024 (PDF on Bharat Petroleum's website) (also published on iocl.com).
Related pages
About Dealer Kavach (advertisement)
Dealer Kavach is an app from MDG Services that tracks your outlet's filings, renewals, inspections and daily reports, and reminds you before deadlines, in Hindi and English.