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Old 08-17-2014, 03:43 AM   #1 (permalink)
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Default Duct tape = mpg?

I just saw this on TV:

Mitsubishi Mirage fuel economy challenge winner duct tapes his way to 74.1 MPG

For a (somewhat) real world test, 74 mpg without lean burn in a heavier and less aerodynamic car than the G1 Insight is pretty good. The test was not controlled to determine if the tape grille blocks actually helped.
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Old 08-17-2014, 07:45 AM   #2 (permalink)
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Painters tape would of been a better choice as there is no clean up. Duct tape, at least what they market as duct tape leaves a stickie residue behind. Goo gone works to get rid of that.

True duct tape is the aluminum tape you see at the hardware store. That is made for fixing air leaks in duct work like your heater or air condition system in your home.



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Old 08-17-2014, 06:17 PM   #3 (permalink)
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Quote:
Originally Posted by Cobb View Post
True duct tape is the aluminum tape you see at the hardware store. That is made for fixing air leaks in duct work like your heater or air condition system in your home.
And for sealing the gaps around the IMA battery cooling fan.

It looks like most of the contestants were using painter's tape. The one guy (the winner?) with black tape appears to be using gaffer's tape. It's very expensive duct tape that actually sticks to stuff and doesn't leave any residue.
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Old 08-17-2014, 06:42 PM   #4 (permalink)
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74mpg is very impressive. i want to know how fast they were driving on the freeway desert.
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Old 08-17-2014, 08:16 PM   #5 (permalink)
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This seems like something Red Green would try! LOL!
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Old 08-17-2014, 10:31 PM   #6 (permalink)
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I think they are just having fun. The blue tape looks like painters tape.

I am sure the mpg was done with a lot of stuff you couldnt do during rush hour on most major highways. Average speed maybe 17 mph.



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Old 08-18-2014, 05:20 AM   #7 (permalink)
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Small hi tech 3 cylinder engine CVT box and Bridgestone Ecopia or Yokohama Bluearth 165 65 14's Low rolling resistance tyres. People shouldn't be that surprised.

Pretty sure there'd be more to the gallon from an insight on more modern LRR tyres if people here could be persuaded to move away from 15yr old technology RE92's. We'll see how I do once my IMA pack is fixed up!

Bluearth are very quiet and comfortable so far. Getting 22km per litre with no IMA in heavy traffic with a seriously long steep hill.
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Old 08-18-2014, 06:44 AM   #8 (permalink)
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Quote:
Originally Posted by Lucky View Post
Pretty sure there'd be more to the gallon from an insight on more modern LRR tyres if people here could be persuaded to move away from 15yr old technology RE92's.
Many U.S. Insight owners have tried all sorts of other tires but none has matched the RE92 to date in terms of fuel efficiency. I don't think that many would argue that the RE92 has great traction, is very quiet, wears very well, etc., but so far, it appears to have the lowest rolling resistance of any tire we have been able to find and test.

Very few 165/65R14 tires are available in the U.S. due to Americans' disdain for small cars, so maybe there are better tires available elsewhere. The 165/65R14 Bridgestone Ecopia is not available in the U.S. The Yokohama Bluearth is not sold in the U.S, and Yokohama doesn't sell any 165/65R14 tire in the U.S. However, European Insight owners haven't reported anything to match their discontinued OEM tires which were not RE92's. In fact, a few have imported RE92's from the U.S. (e.g., me

We would love to have a more modern tire than the RE92, but most of us are unwilling to sacrifice fuel efficiency. So we're all still waiting for something that's available and that's better than the RE92.
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Old 08-19-2014, 06:01 AM   #9 (permalink)
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You miss the point a little - the Mitsubishi Mirages have the same size tyres as the Insight and Low rolling resistance too as standard.

In NZ the Mitsi's come with Yokohamas or Bridgestone Ecopias standard fitment. I presume the US ones are similarly equipped with new LRR 165 65 14's

In Europe Brdigestone sell highly rated Ecopias:

EP001S

I cant get those in NZ


RE92 are almost mythological on this site it needs pointing out for those outside the US that much better (grip and noise possibly economy) tyres may be available.

If US Insight drivers only ever demand RE92 they'll never be offered the better stuff - it has to be better after 15 years product development doesn't it?
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Old 08-19-2014, 11:02 AM   #10 (permalink)
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Quote:
Originally Posted by Lucky View Post
You miss the point a little - the Mitsubishi Mirages have the same size tyres as the Insight and Low rolling resistance too as standard.

In NZ the Mitsi's come with Yokohamas or Bridgestone Ecopias standard fitment. I presume the US ones are similarly equipped with new LRR 165 65 14's
When I searched for 165/65R14 tires on a large Internet tire dealer in the U.S., TireRack.com, I found that the Dunlop Enasave is the only tire other than the RE92 that Tire Rack carries in this size. The reviews of this tire state that it is the OEM Mirage tire. The reviews aren't favorable and specifically recommend the RE92 over the Enasave.

The OEM tire for my i-MiEV is also the Dunlop Enasave but in 15" sizes. i-MiEV owners complain that these tires wear out fast and are expensive, and that they cannot find a better alternative.

One Insight owner has replaced his RE92's with Enasaves and hasn't noticed a fuel efficiency hit (but he admittedly doesn't stress fuel economy in his CVT). So maybe this will turn out to be a reasonable replacement despite poor reviews by Mirage owners.

Quote:
Originally Posted by Lucky View Post
In Europe Brdigestone sell highly rated Ecopias:

EP001S

I can't get those in NZ
They aren't available in the U.S., either.

Quote:
Originally Posted by Lucky View Post
RE92 are almost mythological on this site it needs pointing out for those outside the US that much better (grip and noise possibly economy) tyres may be available.
European Insight owners have been searching for a tire better than their OEM Bridgestone B391, but even with a much better selection than in the U.S., there still doesn't seem to be a clear winner. At least the E.U. now rates rolling resistance, but I'm not aware of any 165/65R14 tire that has received an "A" rolling resistance rating.

Quote:
Originally Posted by Lucky View Post
If US Insight drivers only ever demand RE92 they'll never be offered the better stuff - it has to be better after 15 years product development doesn't it?
One would think so, but what is it? Not only does it need to match the RE92 in low rolling resistance but also in low weight, apparently a tough combination to beat.
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Last edited by aisbell; 08-20-2014 at 06:25 AM.
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