I have this problem and have not been able to get them off with elbow grease so thought I’d research it a bit online.
Here’s a good article:
http://ezinearticles.com/?How-to-Clean-Bugs-Off-of-Your-Car&id=219738
I have used WD-40 before and it does work, takes off the tar too…but you have to wash it thorough afteward, greasy stuff.
I must have some tough bugs. I tried the WD-40 (thanks Robin) and it took a lot of the stuff off after a long road trip … but there’s still plenty on there. Those internet speeds must really get the stuff in deep.
WC Captcha − 1 = 1