02 · SPECIFICATIONS
Design Specification
SN 150 – SN 300, as the plant is designed to produce it. Four rows are highlighted because they are where this oil separates from ordinary re-refined stock: colour, acid number, carbon residue and ash.
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| Property | Unit | SN 150 – SN 300 | Test Method |
|---|---|---|---|
| Appearance | — | Bright & Clear | Visual |
| Colour | — | ≤ 0.5 | ASTM D1500 |
| Kinematic Viscosity @ 40°C | cSt | 25–65 | ASTM D445 |
| Kinematic Viscosity @ 100°C | cSt | 3–10 | ASTM D445 |
| Viscosity Index | — | 80–150 | ASTM D2270 |
| Flash Point, min | °C | 180–200 | ASTM D92 |
| Pour Point, max | °C | −1 to −10 | ASTM D97 |
| Density @ 15°C | kg/m³ | 835–860 | ASTM D4052 |
| Total Acid Number | mg KOH/g | ≤ 0.05–0.1 | ASTM D974 |
| Carbon Residue | wt% | ≤ 0.05–0.1 | ASTM D189 |
| Ash Content | wt% | ≤ 0.05–0.1 | ASTM D482 |
Design specification per the plant technology provider. Batch Certificates of Analysis from our own laboratory will be issued from commissioning in late 2027. Sulfur and saturates are not stated here because we have not measured them — those figures will be published when we have our own test data.
03 · COMPARISON
Cleaner Than Re-Refined Usually Means
Most re-refined base oil in India runs at colour 2 to 4. The plant is designed for 0.5, through continuous vacuum distillation and two stages of polishing, with no acid. The difference shows up in the four rows that matter to a blender.
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| Property | RECOMMENDED SANTOSH GROUP I+ RRBO | Conventional Group I RRBO | Virgin Group I |
|---|---|---|---|
| COLOUR (ASTM D1500) | ≤ 0.5 | 2.0 – 4.0 | ≤ 0.5 |
| TOTAL ACID NUMBER | ≤ 0.05 – 0.1 | Higher, variable | ≤ 0.05 |
| CARBON RESIDUE | ≤ 0.05 – 0.1% | Higher | ≤ 0.1% |
| ASH CONTENT | ≤ 0.05 – 0.1% | Higher | ≤ 0.05% |
| VISCOSITY INDEX | 80 – 150 | 80 – 95 | 90 – 105 |
| PROCESS | Vacuum distillation + two-stage polishing, reusable media | Varies; often single-use clay | Crude fractionation |
| SUPPLY | Domestic, from waste | Domestic, from waste | Largely imported |
Santosh column is the plant design specification, not measured product. Conventional Group I RRBO ranges are industry-typical values for re-refined stock in the Indian market and are shown for comparison only. Virgin Group I per API base oil categories.
04 · AVAILABLE GRADES
Three Cuts. One Colour.
The plant is designed to produce SN 150 through SN 300, all to the same specification: kinematic viscosity 25–65 cSt at 40°C, viscosity index 80–150, ASTM colour 0.5 or better. Cut-by-cut figures will be published from our own laboratory once the plant is commissioned.
SN 300
Heavy-duty engine oils, industrial lubricants
Heaviest cut of the family
Register Interest →05 · PACK FORMATS
Available In Every Scale
Bulk Tanker
For large-volume blenders and industrial users. Full tanker loads from the Budaun plant, once commissioned.
210L Drum
Standard format for mid-scale procurement. Steel drums, fully labelled, with a batch Certificate of Analysis.
IBC (1000L)
Intermediate bulk containers for flexible storage. Suited to blending lab evaluation and trial volumes.
06 · TECHNICAL DATA SHEET
Download the Full TDS
The specification sheet covers SN 150 through SN 300 as the plant is designed to produce it. It is a design specification, not a batch datasheet — measured figures follow from commissioning in late 2027.
- Colour, ASTM D1500
- Kinematic viscosity at 40°C and 100°C
- Viscosity index, flash point, pour point
- Total acid number, carbon residue, ash
- Test methods: ASTM D1500, D445, D2270, D92, D97, D974, D189, D482