In the days of station wagons a rear spoiler above the back tailgate was to help keep the back end and glass cleaner. The thought was redirecting a constant air flow over that area would deter dirt for landing there. The HHR like all flat backed vehicle tends to get dirty on the rear way before the rest of the car. For those that have added that has it helped? Now I know many spoilers are for looks with no way of actually directing the air flow but some designs might be better than others. Thoughts?

 

Somewhere we discussed this before but I can't find the thread at the moment. Not many spoilers are going to keep your rear window clean.

 

Does not help at all.

 

Just as dirty, Just as fast. Sorry. I used the OEM spoiler.
Mark.

 

Like he said
Gets just as dirty, just as fast. No noticible differance on mine.

 

Here the kind of rear deflector that work, Dad had 2 of those Suburban and it work, but the one we have on are HHR from less to no effective, it more to make the truck looking good