Cleaner for white paint?

Anyone know of a good cleaner for the exterior of my truck? There's a lot of light brown dirty film so to speak lol, and I'd like to "Restore" the og white color...specially since I've removed the stripes and it's nice and white behind them. The various "strippers" I've removed have shown that the brown color will clean off, but I need something a lil easier to work with...and less harmful to the paint.

first use a wax remover, then use a clay bar,then use rubbing compund then use a good quality wax, then wax again...you will be amazed

or use a buffer and good cleaner wax

Wow, I'm friggin tired now. Just spent the last 3 hours here at work cleaning the truck. I went back to the paint store today and asked'm for something to help me "restore" my paint. He went outside looked at it, and came back in and grabbed a 3M product, went outside and tried it, and it worked So I bought me some 3M Finesse It II Metal Finishing, Polishing Wax. Reminds me of Nu finish the way it goes on and comes off. Worked really well and quite easy. Other than the one repaired spot, you can't even tell I had stickers on the truck Plus, it got rid of all of the brown road grime all over the truck. She actually has shine to her! Bet if I bought some good stuff now to really polish it she'd shine greatly

Anywho, thanks for the tips, I think this was the way to go, easiest and cheapest...$15

meguiars cleaner wax. that'll work well.

Well, I'm very happy with the results of the Finesse It. I'll be posting pics of the truck with the stripes removed soon. Just working too dang much right now