You follow the maintenance schedule provided by the manufacturer. You will find it in the glove box.

You should look into getting roadside service. This company only charged $20 per month. https://www.tvcmatrix.com/SWright37

There should be a service manual in the glove compartment. If not take time to read the owners manual in the glove-compartment.

sory no one knows maybe you`ll Faind out soon do not worry all will read this and someone will help you good luck.......