Originally Posted by SafeChav
I did??
And whats going on with your battery tray looks like you've accidentally on purpose spilt a tub of grease on it
See the follow on post: you never, but I thought you had.
The battery tray is covered in a wax-oil type substance we use at work to protect bare metal on aircraft from rusting.
That pic was just after I'd applied it. I cleaned the tray up then covered it in this and allowed to harden off slightly before I refitted the battery.