Any ideas on how to get these run-off marks off my black truck?It's been sitting for about 2 months and where the rain runs off my tonneu cover and my extended cab window there's water marks down the bed,tailgate,ect..Tried clay barring ,waxing. truck is black and when the sun hits it right you can see all those annoying marks.

Any other ideas would be great.. Doing it all by hand..
THXs

 

I used Pinnacle Paint Cleansing Lotion on mine to remove them quickly and easily.

 

Once you get the streaks off from below the windows, you need to pay closer attention to keeping the area around those windows clean. When I had my Amazon Green SC, I used to run a soft brush dipped in car wash solution in the gap. When it came time to dry off the truck, I would pop those windows open and wipe the area with a damp towel.

No more streaks, unless I neglected to wash the truck for a month.

 

Yhea, you need to run a towel behind the windows from now on too. I just pop mine open and dry them out after every wash. I don't worry about running a brush though them though. They stay clean and I don't get the streaks anymore...

I now have to worry about water from the mirrors though. F'ing mirrors!