Diesel engines operate under fundamentally different conditions than petrol engines. They generate higher compression ratios, produce more soot, and operate at higher temperatures. This means diesel engine oil must be specially formulated to handle these demanding conditions.
Key differences between diesel and petrol engine oil: - Higher detergent and dispersant additive levels to handle soot - Greater TBN (Total Base Number) to neutralize acidic combustion byproducts - Enhanced anti-wear additives for high-pressure fuel injection systems - Better oxidation stability for longer drain intervals
Understanding diesel oil specifications is essential. The API (American Petroleum Institute) uses the C-series for diesel oils — CK-4 being the latest for on-highway use. The European ACEA system uses categories like E4, E6, E7, and E9 for heavy-duty diesel engines.
Our i-GlooOil diesel range includes CI-4, CH-4, and CK-4 rated oils in viscosity grades from 10W-40 to 20W-50, providing complete coverage for everything from light commercial vehicles to heavy-duty trucks and construction equipment.
