Identification of dynamic oil gearbox

1. Smell of oil: there is a burning smell of genuine oil;
2. Look at the liquidity of oil: after "hanging bottle" of genuine oil, it is not clear for a long time;
3. Oil bubble: after the oil is shaken, it is very rare.
4. Look at the viscosity of oil: it is not easy to get rid of genuine oil, and can pull wire.
If do not have the above characteristic, suggest you still be careful some, change the fake and inferior oil, the damage to transmission case is very serious, gain not worth to lose.