Speaking of those light bars... fuel mileage.

[guitarzan]

Seems there's a lot of chatter about the Renegade light bars here. Just wondering if those cut into fuel mileage much? I know the difference in the newer low profile light bars on police vehicles makes a fairly dramatic difference over the old bars.

Since my KJ is a daily driver I'd like to know what the difference is if any.

 

[jnaut]

Logically, anything which increases aerodynamic drag will have an effect on mileage. My guess is, however, that the stock lightbar would have an effect too hard to notice or pin down. Like many other things, fractions of a percent.

 

[tjkj2002]

Less then .1 mpg loss with the covers on and maybe .2 mpg loss without the covers on.

 

[riptricket]

ya i have a lightbar... roof rack... extra front lights... and a bunch metal all around extra of course, and I still get 18mpg!

 

[Dave]

Sounds like you might as well lite up the KJ then if you want....

Dave

 

[HoosierJeeper]

Maybe it's because I can be a leadfoot...(sometimes....) I never get above 19....


Ah well....it doesn't matter to me!!!

 

[LibertyFever]

ya i have a lightbar... roof rack... extra front lights... and a bunch metal all around extra of course, and I still get 18mpg!

I had all that plus a spare tire in my roof basket and was getting 19 MPG. Once I removed all of it the mileage popped back up to 23 MPG. I don't do that many night runs and don't need all the extra storage.

In regards to the Renegade lightbar, I doubt that it would affect your gas mileage enough to notice.

 

[HoosierJeeper]

And a Rene light bar doesn't weigh much, I bet....

 

[LibertyOrDeath]

Having a Jeep means you don't care about MPG, Gallons Per Mile maybe, but not MPG.

 

[KJ zGal]

The lowest I've ever gotten with my Renegade was 16 mpg and that was in 4wd in the snow and cold...hit 22 once beyond that. Light bar doesn't seem to make a difference--it's conservative driving tactics that do the trick

 

[LibertyOrDeath]

That isn't fun though.

 

[Boiler]

The shape and the closeness to the roof (on the roof) of the stock lightbar should hands down make it the most drag efficient roof lighting system. I would guess there would be no noticable effect after installing one. Tall lights / racks / lightbars would have many times more effect, though still hard to notice. 10x a tiny amount is still a tiny amount.

 

[ThunderbirdJunkie]

No difference with these bad boys

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[Ry' N Jen]

No difference with these bad boys

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How do you like those Hella FF lights?

 

[ThunderbirdJunkie]

So far so good...they're not hooked up yet, LOL.

 

[JeepinJarhead03]

don't ya know just hooking up the wires costs ya 2mpg?

surprised ya didn't put some high pressure sodium lights up there or something

 

[ThunderbirdJunkie]

Haven't been able to sneak any of those off the ceiling at work yet