SHILUX product guide
Choose the right oil with confidence.
Choose an application, compare two products directly and understand why one technology may suit a use case better than another.
Loading… Enable JavaScript to use this tool.
Good to know
Viscosity made clear.
A practical guide for initial orientation. The vehicle manufacturer's current requirement always takes priority.
Viscosity alone never confirms compatibility.
01What do 0W-20, 5W-30 or 5W-40 mean?
The number before W describes cold-flow behaviour: the lower it is, the faster the oil reaches lubrication points during a cold start. The second number describes viscosity at operating temperature. It is not a quality grade, but part of the engine's technical design.
02Why choose 0W-20 instead of 5W-30?
0W-20 is intended for engines designed around low friction, rapid cold-start circulation and efficiency, which is common in modern turbo, downsized and hybrid powertrains. 5W-30 provides a different film at operating temperature and covers many European LongLife and emissions-system applications. The manufacturer's required approval or specification always decides.
03Is a thicker oil automatically better?
No. A higher SAE grade is not automatically better or more robust. Oil that is too thick or too thin may not match the engine design. Use only a viscosity, approval and specification permitted for the vehicle.
04Can I simply change from 5W-30 to 0W-20?
Only if the vehicle manufacturer permits both viscosities with the correct specification for that exact engine. Vehicle model, year, engine code and service requirement must be checked. Viscosity alone is not enough for a safe choice.
05What matters for hybrid vehicles?
Hybrid engines often experience frequent starts and periods when the combustion engine is off. Rapid circulation and the exact manufacturer specification are especially important. Many current hybrids require 0W-20, but this does not apply to every vehicle.
06How do DPF and OPF affect oil selection?
Diesel particulate filters (DPF) and petrol particulate filters (OPF) may require a low-ash Low-SAPS oil. Suitability comes from the required ACEA class and manufacturer approval, not viscosity alone.
Your next step