Sorry about the duplicate posting. For some reason, the first one
posted as part of anther thread with the same title as my posting.
My wife just bought a 2007 Sonata, and we are both quite pleased with
it. One thing we miss, though, is the trip computer we had on the 2004

This past Monday, I got in my '07 Sonata with 8,000 miles on it. I started
driving in to the office (yeah, I know it was Memorial day, but....) about 5
miles from the house it started backfiring.... First one was really loud - I
would have thought I hit something if I wasn't ...

What's the best cleaner to get hard to remove stuff like bug guts and what
looks like tar,ect from my wife's '06 Elantra without damaging finish or
voiding warranty.  Thanks ...