Viscosity measurements with CO₂ -saturated squalane with three different methods, a novel and two classical ones, are compared in a range of pressure from 0.1 MPa to 10.1 MPa at temperatures of 313 K, 333 K and 353K. The dynamic viscosities were measured using an acoustic levitator developed for measurements under pressure, a capillary viscometer and a rotational viscometer. Squalane is saturated with CO₂ at each pressure and temperature measured. It is shown, that the measured data are in good agreement with the values published by Dilchert. With the comparatively fast measurement time, the acoustic levitation has been proven to be a promising method.