[opticals]

Is the motor oil that use for engin the same as fork oil 5W?

 

[TNC]

Well, most of the time, no.

Is the motor oil that use for engin the same as fork oil 5W?

Basically forks use suspension specific oils. Some Manitous with semi-bath lubrication system do use motor oil to lube their bushings. Just about everything else out there pretty much requires ATF or suspension specific oil.