Eso de que el SAE de una marca tiene la misma viscosidad que el mismo SAE que otra como que no...
"For single winter grade oils, the dynamic viscosity is measured at different cold temperatures, specified in J300 depending on the viscosity grade, in units of mPa·s or the equivalent older non-SI units, centipoise (abbreviated cP), using two different test methods. They are the Cold Cranking Simulator (ASTMD5293) and the Mini-Rotary Viscometer (ASTM D4684). Based on the coldest temperature the oil passes at, that oil is graded as SAE viscosity grade 0W, 5W, 10W, 15W, 20W, or 25W. The lower the viscosity grade, the lower the temperature the oil can pass. For example, if an oil passes at the specifications for 10W and 5W, but fails for 0W, then that oil must be labeled as an SAE 5W. That oil cannot be labeled as either 0W or 10W."
Pero datos mas faciles:
SAE 5 Motul:
Viscosidad a 40º cst: 20
Viscosidad a 100º cst: 6
SAE 5 Silkolene:
Viscosidad a 40º cst: 26,7
Viscosidad a 100º cst: 9,46
Parecidos pero no iguales....
Es igual que un 5w40 de moto o coche, nunca son iguales entre marcas diferentes, unas priman que sea mas liquido en frio por lo cual no le queda otra q ser mas liquido en caliente tb...
Saludos!
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