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re: Does Having Your Tailgate Closed Affect MPG
Posted on 7/14/19 at 5:27 pm to fr33manator
Posted on 7/14/19 at 5:27 pm to fr33manator
quote:
what was the reasoning?
The bed make a sort of air bubble that makes the air go over the tailgate. With the tailgate down there’s no bubble and the air forces straight down on the bed, causing drag
LINK
This post was edited on 7/14/19 at 5:30 pm
1
Posted on 7/14/19 at 5:28 pm to Sao
Gate up and windows closed. That’s what my on board computer says.
Posted on 7/14/19 at 5:29 pm to Dlab2013
quote:
The bed make a sort of air bubble that makes the air go over the tailgate. With the tailgate down there’s no bubble and the air forces straight down on the bed, causing drag
So tailgate down for extra traction on the course. Got it.
Posted on 7/14/19 at 5:36 pm to Sao
yes, they tested this on mythbusters
the results were the tailgate down creates a vortex in the bed that adds drag so tailgate down or removed gets worse gas mileage then tailgate up
also a surprising result was that windows down with a/c off also gets worse gas mileage then windows up and a/c on because of wind drag turbulence
so best gas mileage is with windows up tailgate up and a/c on
the results were the tailgate down creates a vortex in the bed that adds drag so tailgate down or removed gets worse gas mileage then tailgate up
also a surprising result was that windows down with a/c off also gets worse gas mileage then windows up and a/c on because of wind drag turbulence
so best gas mileage is with windows up tailgate up and a/c on
Posted on 7/14/19 at 5:43 pm to keakar
I call bullshite on mythbusters. Back in the early 90's I took a brand new v6 full size on a dealer trade a traffic was moving about 80-85 and the truck was really struggling to keep up.
Dropped the gate and had no problem keeping up.
Less power needed=less gas burned.
Dropped the gate and had no problem keeping up.
Less power needed=less gas burned.
Posted on 7/14/19 at 5:51 pm to Cosmo
quote:
But a tonneau cover improves mpg
Fact
I am uncertain this is true. Best drag coefficient is likely but the extra weight may offset the mileage negatively. Not sure if it’s a net plus, minus, or even.
I have one to keep stuff protected. Powertrax.
Posted on 7/14/19 at 6:08 pm to Sao
Depends on how fast you go.
RIP Meauxjeaux
RIP Meauxjeaux
Posted on 7/14/19 at 6:23 pm to foj1981
I miss Mythbusters. That was a damn good show.
Posted on 7/14/19 at 6:27 pm to Sao
Tonneau cover or cap cover will improve mileage over an empty bed.
We have a literal shite ton of trucks here in Texas but I have noticed that cap covers are no where near as prevalent as what I have seen in the upper midwest, what gives?
We have a literal shite ton of trucks here in Texas but I have noticed that cap covers are no where near as prevalent as what I have seen in the upper midwest, what gives?
Posted on 7/14/19 at 6:30 pm to Sao
I member when these were all the rage back in the 80's:
Posted on 7/14/19 at 8:18 pm to Sao
I’m rocking a vintage Air Gate, baw.
Posted on 7/14/19 at 8:21 pm to White Bear
I'm impressed you're still kicking it in a Hardbody. Any chance it has a HoT sticker on the back glass?
Posted on 7/14/19 at 8:23 pm to Sao
By keeping the tailgate closed, the wind cycles through your bed in a circular pattern keeping the wind that would cause drag going right over the truck.
Tailgate up= better mileage
Tailgate up= better mileage
Posted on 7/14/19 at 8:24 pm to 777Tiger
quote:
It’s really negligible providing you maintain an average speed of around 120-130mph, at that speed you’re practically manufacturing gas.
Laughed harder than I should’ve at this one.
Posted on 7/14/19 at 8:35 pm to Sao
Low speed aerodynamics is often counterintuitive. Some blunt bodies can have lower drag than those that look ‘sleek.’ And throw in some ground effect front the fact that you are rolling down a road and the problem gets even more technically challenging.
Posted on 7/14/19 at 9:52 pm to 777Tiger
quote:
It’s really negligible providing you maintain an average speed of around 120-130mph, at that speed you’re practically manufacturing gas.
Wasn't there a thread about a guy claiming better gas mileage, or some off the wall shite when you go that fast? Does someone have a link to said thread?
Posted on 7/14/19 at 9:59 pm to Sao
Posted on 7/14/19 at 10:02 pm to Sao
Depends on which of the 30 configurations you have your tailgate in.
Posted on 7/14/19 at 10:15 pm to TDsngumbo
quote:
My truck nuts reduce my MPG by 4.
Really? My nuts nuts reduce mine 5!
Posted on 7/14/19 at 10:19 pm to Sao
quote:
What does the OT say?
Tailgate down increases downforce, which increases gas mileage,
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