Join Date: Sep 2016
Car Year: 2017
Car Model: Forester
Feedback Score: 0 reviews
A lot of the underside is covered with plastic making it inaccessible. But I use a long handled scrub brush soaked in soapy water to reach as much as possible underneath. This is good for the LCAs, differential, sway bar, muffler, and wheel wells among other things.
I have three years of beach driving on my 2017 with no noticeable wear. Frankly I worry more about the salt on the roads every winter.