Why did this show up an hr after rinsing it down? How should I clean it?
Is this from the battery acid? Cause the battery IS right above this. the paint on the upper control arm is chipped and peeling up and I’m certain it wasn’t anywhere near this bad when I rinsed it a couple of days ago and I rinsed it again today and then saw this after checking for a grinding sound in the brakes after cleaning (seemingly rust as the sound got quiet and stopped and they looked fine). Last pic is the other side.
Edit some things to add. I replaced the battery roughly 8 months ago and it wasn’t leaking + I’ve done lots of rinses since then. Also brake fluid and power steering fluid are full.
Also 4 months ago I had 2 white zip ties tied around the frame in exactly this spot. I used them to hold my phone to get a video of the upper ball joint. I had just left them and I always noticed them when I cleaned it because I thought they looked really stupid. Well 3 days ago when I was washing it I noticed they were gone and I just thought the heat somehow broke them off. I’m wondering if this doesn’t have anything to do with it. That’s also how I KNOW FOR A FACT it was not at all like this even after the battery change.