WINIRON TURBO DIESEL 20W-50 CF-4/SJ Motor Oil — 25 L

WINIRON TURBO DIESEL SAE 20W-50 API CF-4/SJ is a motor oil specifically designed for diesel engines (Diesel Engine Oil) of trucks, buses, and heavy equipment. It is formulated with Korean quality standards (Korean Quality and Technology) and Anti-Wear Technology.

According to the packaging labels, the product features a high SAE 20W-50 viscosity grade and meets the API CF-4/SJ specification. The API CF-4 standard is intended for high-speed, high-output diesel engines (both turbocharged and naturally aspirated). The thick 20W-50 base makes this oil an ideal choice for operation in hot climates (summer use) and for worn engines, as the thick oil film provides superior engine protection (Superior Engine Protection) against wear, maintains stable pressure, and reduces oil burn-off. The additional API SJ standard allows this oil to be used in older gasoline engines within mixed fleets.

The base oil type, exact physicochemical properties, manufacturer details, and official OEM approvals require confirmation via the product's Technical Data Sheet (TDS).

Package volume — 25 liters (plastic canister).

Recommended for use in diesel engines of older generation (Euro-2, Euro-3 standard) trucks, construction, and agricultural equipment operating in hot climates or with significant wear, where API CF-4 specification and high 20W-50 viscosity motor oil is required.

It is strictly not recommended for use in modern diesel engines equipped with Diesel Particulate Filters (DPF) and Common Rail systems, nor for winter operation in severe cold regions (due to the thick 20W rating).