Karachi Oil Express

AISIN 10W 40 - Semi Senthetic

From Rs.2,690.00

Call +92 300-0458502 for bulk pricing & availability.

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100% Genuine — Authorized distributor stock only

Same-day delivery in Karachi · Nation-wide courier

Pickup: Nishtar Road, Garden, Karachi

Call +92 300-0458502

To be classified exactly as an SAE 10W-40 multigrade engine oil, the fluid must meet rigorous physical parameters defined by the SAE J300 engine oil viscosity classification standard.

1. Low-Temperature Operational Limits (The "10W" Rating)

Cold Cranking Viscosity: Maximum 7,000 mPa·s (centipoise) at -25°C. This ensures the starter motor can turn the engine over during a cold freeze.
Cold Pumping Viscosity: Maximum 60,000 mPa·s at -30°C with no yield stress. This guarantees the oil pump can successfully pull the oil from the pan and circulate it.

2. High-Temperature Operational Limits (The "40" Rating)

Kinematic Viscosity at 100°C: Minimum 12.5 mm²/s (cSt) and maximum less than 16.3 mm²/s. This is measured at normal engine operating temperature to ensure proper fluid thickness.
High-Temperature High-Shear (HTHS) Viscosity: Minimum 3.5 mPa·s at 150°C. This tests the oil's structural strength under extreme stress, such as inside crankshaft bearings.
Documents

Technical Data Sheet