Car has got quite a bit of green grime building up in nooks and crannies... Should have done at least a small mid-winter wash!
What's the best way to sort it out? Before a proper wash, during, or give it a general wash then spot check any problem areas? I've got BH Auto Wash, Surfex HD, and some very cheap spray n shine type stuff I've never tried. No pressure washer so it's buckets only sadly.
I had green stuff where the windows are where it meets the door at the bottom, for that just use surfex hd onto a brush to get in there
On paintwork though? I'm not sure
Do you do a pre wash at all?
I do rinseless wash, if I need to do heavy cleaning I use surfex hd as a pre wash