I'm a Meguiar's user. I use the yellow soap (of course!) that's got the
GTR on the label, it's a good soap that doesn't cost much and I use either
Gold Class paste wax or if I don't have a lot of time I'll use
Ultimate Quick Wax. Believe it or not that dirt is sitting on top of a car that's hasn't been hand washed and waxed since last November! I go through a drive through now and again, but that's it. What ever crap they are using is what the dirt & grime were sitting on top of.
370Z/28 wrote:I would like to take my mudguards off too. They are ugly, but so are rock chips.

Are they hard to get off?
Here are a couple of links on Courtesy Parts on installing the
front and
rear splash guards. Removal is just the opposite with the exception of not having to drill any holes. I'm not sure what it's like on the 370, but I can't imagine it's much different.
If you're going to remove them you should do it sooner rather than later. The longer you wait the "harder" the line will be from where the splash guards meet the skirt will be. Clay bar (and maybe rubbing compound if it's a severe line) will help you get rid of the line.
And I'll be letting everyone know about chip repair in a week or so. I picked up a chip repair kit from
Dr Color Chip and I plan on taking a series of before & after shots as well as documenting the process.