You are here: Forums SUVs Toyota FJ Cruiser Does FJ Air Dam Help Fuel Mileage vs Just The OEM Roof Jack

Does FJ Air Dam Help Fuel Mileage vs Just The OEM Roof Jack

3 messages,  Last post on Nov 05, 2008 at 12:06 AM

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#1 of 3 Does FJ Air Dam Help Fuel Mileage vs Just The OEM Roof Jack by mwhunter1 Apr 05, 2008 (4:37 pm)
I've seen several posts on these forums that talk about the FJ's roof rack knocking off as much as 2mpg. I can understand the drag factor due to the design of the rack, but then I see the 2008's have what appears to be a new "Off Road Lights With Air Dam" option. It would seem to make sense that the addition of the roof rack with the air dam/lights set up would help airflow over a otherwise chunk of tubular metal parked on your roof.   Has anyone had the air dam/lights option installed and then seen any difference in their mpg vs the install of the standard roof rack ~ or am I just dreaming? Replies to this message: steve_ (Apr 05, 2008 10:18 pm) shoozie (Nov 05, 2008 12:06 am)
#2 of 3 Re: Does FJ Air Dam Help Fuel Mileage vs Just The OEM Roof Jack [mwhunter1] by steve_ HOST Apr 05, 2008 (10:18 pm)
Replying to: mwhunter1 (Apr 05, 2008 4:37 pm) While waiting for responses from other FJ owners, check out We Test the Tips Part II.   "Adding a roof rack (cross rails) and driving with cruise control at 65 mph caused a 1 percent loss in fuel economy than driving at the same speed without cross rails." Replies to this message: shoozie (Nov 05, 2008 12:06 am)
#3 of 3 Re: Does FJ Air Dam Help Fuel Mileage vs Just The OEM Roof Jack [steve_] by shoozie Nov 05, 2008 (12:06 am)
Replying to: steve_ (Apr 05, 2008 10:18 pm) Have the Air Dam with light kit on order. I'll let ya'll know. I can't imagine it wouldn't help MPG> All I can say is that for as much as it cost, IT BETTER!

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