Pag-usapan natin ang tungkol sa "lapot" na kung saan ay ang pinakamahalagang tagapagpahiwatig nglangis ng motor. Isa sa mga pinakakaraniwang tagapagpahiwatig nglangis ng motor viscosityay ang halaga ng SAE nglangis ng motor. What do you usually hear about OW-20 and 5W-30, right? There are five common numbers in front of W, which are 0, 5, 10, 20, and 25. The smaller the number, the lower the applicable ambient temperature. There are also 5 common numbers behind W, which represent the highest temperature applicable to the langis ng motor, which are 20, 30, 40, 50, and 60, which represent the viscosity of the langis ng motor. This is also the case in motorcycle oil. Most of the langis ng motor used by European and American motorcycles such as BMW is 5W-40, 15W-50, Harley 20W-50, KTM 10W-50, and Ducati 15W-50. The langis ng motorsginamit ng Honda at Kawasaki ay 0W-30 o 10W-40. Samakatuwid, makikita na ang mga tagagawa ng kotse sa Europa at Amerikano ay nagbibigay ng higit na pansin sa pagganap ng sasakyan, kaya't ang lapot ng disenyo ng langis ay medyo mas mataas.
