The amount of washer fluid I use from spring until fall is ridiculous.
I have actually wondered about one of these but never really looked into getting one.
Thank you for posting

 

I like the bug deflectors to protect the part of the hood that arches down from rock chips. I did a different approach, I just got a strip of PPF and put it over that part of the hood

 

We don't have fall in Florida, so 24/7 flying critters which include the Florida State Bird "the Love Bug". My '14 came with a deflector, but shattered in the first 6 months when it stopped a rock. Prolly could use another one, but I do like the window vents for keeping the interior smelling fresh and keeps the rain out.

 

In extreme south Georgia, we are very familar with lovebugs also. But I've never had a bug deflector that worked. All they have done for me is protect the leading edge of the hood from rock chips.

 

I had one long ago on an early 2000s Ford Expedition which I was generally happy with and found it rather effective. Then one day, I stumbled upon a discussion regarding their potential impact on fuel economy which spawned more questions in my mind. As it turns out, their functionality comes not from directing air more efficiently over the windshield. Quiet the opposite actually. They actually disturb the airflow, creating more or less an eddy of air....a buffer so to speak...which negatively impacts aerodynamics to some extent. I decided to do an unscientific comparison of long interstate drives with and without the deflector installed. On that particular vehicle, it turned out to be a full MPG loss with the bug deflector on. Granted, that Expedition may have been slightly more aerodynamic than our Wranglers, but it did have similarly poor fuel economy and I'm not looking to make my Wrangler's fuel economy potentially worse than it already is.

 

...which negatively impacts aerodynamics to some extent. ...

I think this is the first time I've seen a post about negative impacts to aerodynamics with regard to a Jeep Wrangler. Essentially saying it negative impacts the aerodynamics of a brick. Good post though and with regard to the discussion, if a bug shield redirects bugs and stops a rock/rock chips then it probably would pay for itself fairly quickly.

 

I actually ordered a bug deflector earlier this week, you can also use Rain-X on the windshield to help them keep from sticking so bad...

 

I actually exclusively use Rain-X washer fluid which I've found helps keep them from sticking so bad. I made the switch to it from the cheap blue stuff for other reasons but it's an added benefit. The cheap blue stuff sucks for a couple of big reasons. Despite the claims on the bottles, it readily freezes at the nozzles themselves whereas the RainX stuff doesn't so easily. The biggest reason for me was learning the harmful impact the blue stuff has on your paint as it oversprays or runs off the sides of your vehicle.

 

I had a bug deflector on a '89 F350 a loooooong time ago. The only thing it really seemed to deflect from the windshield was the washer fluid when I was trying to clean the windshield off. The windshield caught plenty of bugs, rocks, and freeway debris.

 

I've added bug deflectors to 2 different Wrangler JLU's, no noticeable difference in mileage. I'm adding one to my JK now and I'm not expecting any there either.