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Roof rack fuel economy

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  #1  
Old 07-07-2021, 10:29 AM
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Default Roof rack fuel economy

Does anyone have any numbers on the fuel economy hit that comes from the OEM or 3rd party roof racks?
 
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Ahparke (07-07-2021)
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Old 07-07-2021, 01:03 PM
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I dont think people are buying the Defender for great Fuel Economy. It is easy to say the numbers go down by a minimum of 1 for racks
 
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Old 07-07-2021, 04:51 PM
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Originally Posted by ADVAW8S
I dont think people are buying the Defender for great Fuel Economy. It is easy to say the numbers go down by a minimum of 1 for racks
I totally hear you that fuel economy isn’t the reason you buy a new Defender and it’s not why I bought mine. As a Defender owner who loves the outdoors though, I want to minimize my environmental impacts as much as possible without losing the functionality of of having the Defender. If there is a rack that is more efficient than another, that matters to me regardless of whether or not the car is not the most fuel efficient thing on the road…
 
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Old 07-07-2021, 04:52 PM
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I have the full size front runner rack and installed it about two weeks after purchase. Over the last 6k miles, the average MPG is 17.8. This is on a P300 with factory goodyear ATs. Only thing permanently mounted on the roof rack is a solar panel. I recall seeing 20-21mpg before putting the rack on, but that was before any meaningful driving. The last 6k miles involves city, highway, long road trips, and some light off roading. So, I would say you will lose 2-3 MPG and gain a lot of wind noise.
 
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spr1998 (07-07-2021)
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Old 07-08-2021, 04:38 AM
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Originally Posted by spr1998
Does anyone have any numbers on the fuel economy hit that comes from the OEM or 3rd party roof racks?

……since I’ve removed mine to have it painted, it’s increased by a surprising 3mpg 😳
 
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angelboing (07-08-2021)
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Old 07-08-2021, 10:15 AM
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This is my exact experience except I have the smaller front runner.

Fully loaded up and going through the mountains I got a surprising (at least I felt it was surprising) 17.5 a few weekends ago.

This last weekend driving with an empty rack across the barren, windy hellscape of Kansas, I only got 15. But it really was windy as hell, more so than usual.

No offense to Kansans. I was driving to my home state of Oklahoma, so I feel like I can poke a little fun

Edit: oops meant to quote Zac up there
 
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spr1998 (07-13-2021)
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Old 07-08-2021, 01:47 PM
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If you own a Front Runner, splurge and get yourself the fairing it is a game changer.
 
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spr1998 (07-13-2021)
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Old 07-08-2021, 05:49 PM
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Originally Posted by ADVAW8S
If you own a Front Runner, splurge and get yourself the fairing it is a game changer.
The MPG I reported is with the full size fairing. The noise level is about the same for me with the standard small fairing and the full-size fairing. I think it may have something to do with the solar panel mounted at the front of the rack. However, I had the exact same setup on my LR4 and it didn't make as much noise as the defender. I've even added some of the rubber strips that fit in the t-slot, which is supposed to help with wind noise. I'm actually thinking about comparing the noise of fairing setups if I ever have time. Solar panel has to stay. I get lengthy power outages during hurricane season. Pic below of my current setup. Awning doesn't seem to add any noise.


 
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spr1998 (07-13-2021)
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Old 07-09-2021, 08:52 AM
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Just 'cause:



 
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spr1998 (07-13-2021)
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Old 07-09-2021, 09:18 AM
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Love the backpack on the wheel! I've seen a lot of things that leverage the wheel as the anchoring point. I read somewhere about a weight limit to that. Not sure if it was more "Warranty Warnings" or if there's a known load limit. Anyone know? I'm thinking a wheel pack and grill is cake, but some of the fuel carriers make me a little more skeptical.
 
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spr1998 (07-13-2021)


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