WINIRON PROTECT 10W-40 SL/CF Motor Oil — 4 L

WINIRON PROTECT SAE 10W-40 API SL/CF is a semi-synthetic (Semi-Synthetic) motor oil specifically designed for gasoline engines (For Gasoline Engines). It is formulated with Korean quality standards (Korean Quality and Technology) and proprietary Anti-Wear Technology.

According to the packaging labels, the product features an all-season SAE 10W-40 viscosity grade and meets the API SL/CF specification. This standard is optimal for older generation vehicles (pre-2004) and engines with significant mileage. The semi-synthetic base combined with the 10W-40 viscosity ensures stable oil pressure, reduces oil consumption, and minimizes leaks through worn seals.

Exact physicochemical properties, manufacturer details, and official OEM approvals require confirmation via the product's Technical Data Sheet (TDS).

Package volume — 4 liters.

Recommended for use in gasoline engines of older generation passenger cars and light commercial vehicles where the manufacturer permits the use of a semi-synthetic motor oil with SAE 10W-40 viscosity and API SL (or earlier API SJ, SH) specification.

An excellent and economical choice for higher-mileage engines that need a thicker oil. Not recommended for modern engines requiring low-viscosity energy-conserving oils or modern API SN/SP standards, nor in diesel engines equipped with Diesel Particulate Filters (DPF).