I have a 2008 Matador red IS and have a lot of hard water spot. What is a good product to use to remove them safely?

 

try searching under the Detailing section this has been discussed.

 

clay bar + UQD is your best friend

 

try.... diluted vinegar.... and then wash it.. then qd+ or ^^^^^^

 

Someone told me that Turtle Wax's Bug&Tar remover removes water marks. He used this method on his Silverado.

 

like acefalcon stated, try using diluted vinegar first to see if it will remove the calcium deposits (water spots). If that doesnt work, you can move to a light cleaner/polish like P21s Paintwork Cleansing Lotion. IF this still doesnt work, chances are, you'll need a stronger, abrasive polish to help remove the spots.
http://www.glimmerglassdetailing.com/poglco.html

 

What ratio do you dilute the vinegar with? I have some vinegar at home, wanna try it out

 

You can really go as strong as you'd like. 1:1 should be a good starting point though. Remember to rewash afterwards though using clean water and a quality auto shampoo.