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05-01-2017, 07:51 PM
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#1 |
 
Drives: 2018 Camaro ZL1 Convertible Join Date: Mar 2017
Location: Palm Coast Fl
Posts: 87
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Top up or down mileage
I just took a 300 mile trip and noted a very big difference in MPG with each. The trip with the top down seem to have taken a lot more gas than the one with the top up. I would have thought it would be the other way around. I have about 1800 miles on the car when I left and around 2400 when I started the return trip. I used 93 octane in both trips. I had about 1/4 of a tank left on my top down trip and 1/3 with the top up. I was actually driving faster with the top up on average so the top down must make a very big difference. Is that expected? Will a windscreen save gas with the top down?
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05-04-2017, 07:25 AM
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#2 |
 Drives: 2017 2SS Auto Join Date: Apr 2017
Location: SC
Posts: 116
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Good question. I haven't tracked mileage across both "modes" yet. I have done well on the highway in mixed top down and up driving achieving 27mpg on a 300 mile trip all on a car with less than 1k miles. If I take a trip of a hundred miles or so, I will track my mileage but I have to assume with the top down, there will be some additional drag resulting in a lowered MPG.
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05-09-2017, 07:35 PM
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#3 |
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Drives: 2018 Camaro ZL1 Convertible Join Date: Mar 2017
Location: Palm Coast Fl
Posts: 87
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I have been monitoring the instant mileage and I do get about 2 MPH at 70 with the top up. About the same as drafting (about 3 Or 4 car length back) a truck or car at that speed.
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2018 Camaro ZL1
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05-09-2017, 08:12 PM
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#4 |
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#TeamBeckyD
Drives: 2017 HBM 2SS Convertible A8 Join Date: Aug 2008
Location: Apopka, FL
Posts: 10,496
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Gas is cheap who cares about mpg we get to enjoy what the coups do not open air when ever we want
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 #TeamBeckyD**FIFTY HBM 2SS VERT** |
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05-09-2017, 08:25 PM
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#5 | |
Drives: 2016 Camaro Convertible 2SS Join Date: Nov 2016
Location: Gastonia, NC
Posts: 102
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Quote:
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05-09-2017, 09:22 PM
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#6 |
 
Drives: '16 vert 2LT RS NPP Join Date: Jun 2012
Location: Northwest Indiana
Posts: 344
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^ That was exactly my educated guess.
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05-10-2017, 09:50 AM
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#7 |
 
Drives: 2016 Camaro 2SS Convertible Join Date: Sep 2016
Location: SF Bay Area
Posts: 565
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X2 on what blpadge2 said. Here's a portion of a screen capture from my Fuelly.com account. Prior to my last fill-up, I had been driving home from work just about every day with the top down. I don't do too much spirited driving, so most of the MPG decrease can be attributed to driving with the top down.
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2016 Camaro 2SS, Convertible, Summit White, A8, NPP, NAV, Daily Driver (Sept. 2016-Present)
1996 Camaro Z28 with T-Tops (Sold 10.22.16) 1986 Camaro IROC-Z with T-Tops (Sold) 1961 Volkswagen Beetle with Sliding Ragtop Sunroof (2009-Present) 1964 Volkswagen Beetle with aftermarket Sliding Ragtop Sunroof (Sold)  Follow me on Instagram - @gen6_2ss_vert |
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05-30-2017, 09:51 AM
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#8 |
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Drives: 2017 2SS Auto Join Date: Apr 2017
Location: SC
Posts: 116
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I am very impressed with the mpg of this beast. With mixed driving (and a heavy foot) I am averaging around 20-21 mpg. My wifes Infiniti EX35 isn't any better and has 2 less cylinders and 160 less hp.
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05-30-2017, 10:38 AM
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#9 | |
      
Drives: S O L D Join Date: Aug 2016
Location: Ontario
Posts: 2,106
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Quote:
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Club F1FTY
2017 2SS 50th Anniversary Convertible Borla S-Type exhaust NPP| GM CAI | Color matched GM side skirts | Color matched 3rd brake light | Big Worm Graphics smoked out tail lights & rear reflectors | Oracle ghosted side markers | LED License plate bulbs | Door striker covers | Jam handle | Engine emblems from RiverCity Creations | 50th Center Console | Black bow ties | Hawk Performance ceramic brake pads | ZL1 Start button | CQuartz ceramic paint finish | Novistretch bra | S O L D |
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05-30-2017, 10:41 AM
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#10 |
 Drives: 2016 Z06 coupe Join Date: Dec 2016
Location: Mi
Posts: 280
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All the money I spent on a Convertible over a coupe do you think I'm going to worry over a few cents more for gas mileage. If that was the case I'd bought a 4 cyl. Instead of the big V8.
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05-30-2017, 10:47 AM
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#11 |
Drives: SW 1SS 1LE / Jeep XJ Join Date: Mar 2016
Location: WPB,FL
Posts: 799
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Drag coefficient increases a significant amount with the top down which is why you noticed increased fuel consumption.
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05-30-2017, 01:16 PM
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#12 |
Drives: 2017 RS convertible Join Date: May 2009
Location: New Kent, Virginia
Posts: 837
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I'm averaging 27-28 with the top up, and 26 or so with the top down. that's without using cruise control.
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Camaros I've owned:
1969 RS/SS Z10 Indy Pace Car - Hardtop 1 of 250 1970 Camaro 2010 2LT RS 2013 2SS RS Current ride: 2017 Camaro 2LT RS convertible |
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07-30-2017, 09:58 AM
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#13 |
Drives: 2016 2SS Ragtop Garnet Red Join Date: Sep 2016
Location: Alabama
Posts: 447
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Dont know about y'all but I can hear my NPP exhaust so much better with the top down that it encourages me to stomp the gas that much more often. Top up / Top down - either way Im getting about 13 MPG. Ohh I love the sounds of the exhaust in Track mode.....
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