Castrol Activ 4T 10W-30 Synthetic Technology Engine Oil 1L

Looking for a 10W-30 four-stroke oil for your motorcycle in Bangladesh? This is Castrol Activ 4T 10W-30 Synthetic Technology Engine Oil 1L. When comparing options, look at model, viscosity and bottle size side by side.

The pack pictured is Castrol Activ STOP-START 10W-30, the motorcycle Synthetic Technology version. Activ bottles differ by market, so check the complete range name, not only the viscosity.

Actibond technology is used across Castrol's Activ line to help guard against wear, deposits and corrosion. The words "Synthetic Technology" on this pack don't, on their own, tell you whether the oil is fully or semi-synthetic.

In 10W-30, the 30 is the SAE hot-viscosity class and the 10W refers to cold-temperature behaviour — it has nothing to do with engine size. A 10W-40 oil sits in a different hot class, even from the same brand.

One litre is what you get in this bottle. That figure is not how much your engine takes: a routine refill, a change with a new filter and a fully dry engine all need different amounts, so go by the quantity in your own manual.

Compare the API level and JASO clutch rating on the bottle with what your manual asks for before you order. Stick to the manual's change interval too, including its severe-use advice for heavy traffic or lots of short trips.