Fuel Economy Tip – Avoid the Spoiler

by Brian Carr on May 24, 2006

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Today’s tip may or may not be able to help you out, but if it can, it’ll help you save a bunch of cash.

If you can help it, avoid having (or adding) a spoiler on your car.

Look, I know this isn’t going to help you if you have a car that already has one, but maybe this will help dissuade you from getting a car with a spoiler or adding one to your car.

The basic function of a spoiler is to add downforce to your car to help improve handling at high speeds, so at it’s very nature, having a spoiler will hurt your fuel economy.

Much like when you have your sunroof or windows open, a spoiler adds a lot of drag to your car, which, as I’m sure I’ve made you aware, drastically reduces your vehicle’s gas mileage.

So, if you can avoid buying a car that’s got a spoiler, or can avoid putting one on your car when you “trick it out,” you’ll save a bunch of money.

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{ 3 comments… read them below or add one }

Ryan September 28, 2006 at 6:34 am

Modern spoilers in 99% of todays cars produce NO downforce at all… most actually do help fuel economy slightly by straightening the turbulent vortex rolling off the back of the car. less turbulence = less drag. (i’m talking about low profile factory OEM spoilers, not the park bench things some people have.)

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brian April 21, 2008 at 1:12 pm

I took the factory spoiler off my car and saved 10 lbs of dead weight plus the air drag. a totally useless item for daily driving. if you can lower your front end by a couple of inches it will reduce drag by pushing more air over the car instead of under it.

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Jim Nordstrom August 23, 2011 at 9:45 am

I have a 2005 Mustang GT with no spoiler and I’m averaging 27 to 28 mpg at 70 to 75 mph. This well over what the sticker claims for gas miliage.

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