![What Happens if I Use A Thicker Oil in My Engine?](https://blog.amsoil.com/wp-content/uploads/2020/11/Changing_Oil_XL_1200px.gif)
![](https://blog.amsoil.com/wp-content/uploads/2020/11/Changing_Oil_XL_1200px.gif)
What Happens if I Use A Thicker Oil in My Engine?
It's best to use the recommended viscosity, but a slightly thinner or thicker oil likely won't cause harm.
Sign up for bi-weekly updates.