Packaging shown in the current range
Heavy-duty diesel engine oils
ISCAR B40
ISCAR B40 is listed in 20W-50 API CI-4, 4 L. Confirm the current TDS and the equipment requirement before ordering.
Include your country, required specification, pack size and estimated quantity.
Product data
Variants shown in the range
| Viscosity | Label designation | Pack |
|---|---|---|
| 20W-50 | API CI-4 | 4 L |
Confirm the current technical data sheet and equipment requirements before ordering. Packaging designations are not a statement of independent certification or vehicle-manufacturer approval.
Product overview
What is listed for ISCAR B40
ISCAR B40 is a heavy-duty diesel engine oil listed as 20W-50, API CI-4, 4 L. It belongs to the B series for commercial-vehicle and fleet enquiries. This page records the packaging information available in the current range; confirm the current TDS before ordering.
B40 is positioned for diesel engines whose manufacturer specifies API CI-4 and 20W-50. CI-4 and CJ-4 are different categories; do not assume that B40 is approved for every engine that uses a CJ-4 oil.
Applications
- Trucks, buses and diesel equipment where the manual specifies API CI-4 and 20W-50.
- Older diesel engines and markets where CI-4 is the required service category.
- Fleet and workshop purchasing where 4 L packs are the service format.
- Not for engines requiring CJ-4, a low-ash oil or a specific OEM approval unless confirmed.
Before ordering
- Engine model, emission system, fuel sulfur level and OEM requirement.
- Whether the manual specifies CI-4, CJ-4 or another category.
- Current TDS, SDS and batch certificate.
- Pack size, storage and required quantity.
Documents
Request the technical data sheet (TDS), safety data sheet (SDS), batch certificate (COA) where available, and evidence of any OEM approval for the exact product. Packaging designations are not a statement of independent certification.
For a quotation, include the country, grade, pack size, quantity and required documents.
Request TDS / SDS →Product FAQ
Can B40 replace a CJ-4 oil?
Only if the engine manufacturer confirms that CI-4 is acceptable. CJ-4 was developed for low-sulfur fuel and advanced after-treatment; using CI-4 where CJ-4 is required may not be approved.
Is 20W-50 suitable for cold climates?
It is thicker at low temperature than a 15W or 10W grade. Check the handbook's cold-start requirement and the lowest expected temperature; do not choose a grade by climate alone.
Does API CI-4 guarantee an OEM approval?
No. API CI-4 is a service category; OEM approvals are separate and product-specific. Ask for evidence for the exact product.
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