Castrol Activ 4T 20W-50 Synthetic Technology Engine Oil 1L

For four-stroke motorcycles that call for 20W-50, there's Castrol Activ 4T 20W-50 Synthetic Technology Engine Oil 1L, sold here in Bangladesh. Weigh up model, viscosity and pack size together when you compare.

This is the grade-50 Activ for motorcycles, supplied in Synthetic Technology packaging. Activ naming and specs change from market to market, so don't assume all Activ 20W50 bottles share one formulation.

Every Activ oil from Castrol carries Actibond technology to help protect against wear, deposits and corrosion. The "Synthetic Technology" wording on the bottle does not settle whether this version is semi- or fully synthetic.

With SAE hot-viscosity class 50, 20W-50 is thicker when hot than grade-30 or grade-40 oils. Thicker doesn't automatically mean more protection — use it only if your manual allows this grade and the performance standard matches.

You receive 1 Litre here. How much goes into the engine is a separate question, since a normal service refill, a filter change and a dry engine each differ; measure out what your specific manual states.

First line up the label's API and JASO clutch markings against the manual's requirements, then order. Change the oil on the schedule the manual gives, using its severe-duty interval if your riding is mostly stop-go traffic or short runs.