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Discussion Starter · #1 ·
After having to be towed because of a flat tire, I bought one off of eBay. It just came in earlier this week. I have been riding around with it to see how it will impact mpg’s. So far I am up .2 of a mile.
 

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After having to be towed because of a flat tire, I bought one off of eBay. It just came in earlier this week. I have been riding around with it to see how it will impact mpg’s. So far I am up .2 of a mile.
Is the spare that you got from eBay a compact one? If so, does driving with it limit your speed to <45 mph and is that helping your fuel efficiency?
 

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After having to be towed because of a flat tire, I bought one off of eBay. It just came in earlier this week. I have been riding around with it to see how it will impact mpg’s. So far I am up .2 of a mile.
It is in the box in my trunk...that’s what I meant by riding around with it.
Gets a flat, buys a spare tire, tells us it didn't impact mpg while riding around with it, and then clarifies that riding around with it meant carrying it in the trunk with .2mpg gain... lol :smile_big:
 

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2019 Honda Insight Touring
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It is in the box in my trunk...that’s what I meant by riding around with it.
Ah! Now I get it! But a little odd that your mpg improved, no? Or maybe we call the +0.2 mpg 'negligible' fuel efficiency impact, for the extra weight (~35 lb)?
I'm a little dubious about weight and mpg differences showing much at these rate of changes. I have installed a huge amount of sound dampening material in my car and this stuff is a bit on the heavy side. I've probably put nearly 30 to 40lbs of sound dampening and have seen no difference in the mpg than before the install. I'd guess the fact I'm a fat mammal probably has more effect since I figure most of you are between 140-180lbs versus my walrus figure of about 275lbs.
 

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2019 OWP Insight EX, 2021 PWP Insight EX
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I'm a Rubenesque 215 pounds. I've got a spare setup along with a fully loaded trunk organizer, I've seen no adverse impact to MPG. Weather/temps have been the only mitigator.
 

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Discussion Starter · #8 ·
I’m a fat ass too. I achieved 42 mpg with my wife and 2 kids and full trunk of luggage averaging 75 mph on a 2000 mile trip. I do t think the spare will decrease mpg’s much.
 

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I’m a fat ass too. I achieved 42 mpg with my wife and 2 kids and full trunk of luggage averaging 75 mph on a 2000 mile trip. I do t think the spare will decrease mpg’s much.
This reminds me of a post about a member in California, dropping his kid off at college if I remember correctly, and noting that the trip fully loaded vs, normal load was very similar in fuel mileage. This has a lot to do with minimizing rolling resistance. The lower that coefficient, the less affected by mass (like my fluffy self :D).

I think we can safely say that in terms of fuel economy, load is pretty low on the list.
 

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This reminds me of a post about a member in California, dropping his kid off at college if I remember correctly, and noting that the trip fully loaded vs, normal load was very similar in fuel mileage. This has a lot to do with minimizing rolling resistance. The lower that coefficient, the less affected by mass (like my fluffy self :D).

I think we can safely say that in terms of fuel economy, load is pretty low on the list.
https://www.gen3insight.com/forum/2...onomy/2496-abnormal-trip-so-cal-san-fran.html
^^^ I think you're referencing this recap in this thread, re: abnormal trip from So Cal to San Francisco. :)
 

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I've only had my spare tire for a week, but when the temps were in the 70's on Sunday 2/2/2020, I was getting 56 mpg.
With an second passenger, too. I suspect now the temps are back in the 20's - 30's (though it's showing 8 degrees this evening and supposed to go down to
1 or 2 below zero overnight) that my mileage will go back down to 50-51 mpg.
 

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I would love to hear updates on peoples first hand experience. I am considering an Insight and test drove one today, along with a civic hatchback.

I am leaning towards the Insight, but am concerned over the choice not to include the tire. I want something fuel efficient, but something that will be comfortable for road trips including my wife, my self, and normal luggage for a week long trip.

The dealer said I could get a spare with different foam inserts to accommodate it for $310. I would plan on getting this package.
 

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Discussion Starter · #14 ·
@Wilson it is a comfortable car once you get it in it. I’m a big boy with a bad back. Getting in and out is my issue. But I knew that when I bought it. I took a 400 mile trip a few weeks back with my wife and kids and a full trunk and averaged 46 mpg’s with an average speed in the low 80’s. I have been looking for something bigger lately. But can’t seem to find anything that matches my daily commute average mpgs…which is between 52-55. I don5 baby the car either…drive it like I stole it. Plus I think it looks better than the civic and more refined.
 

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I recently installed a Full Size Spare - Touring...with '0' effect on mileage so far.

FULL Size Spare Installed - Touring

Let's say it drops 1 or 2 mpg...that's the price I'm happy to pay for 'piece of mind' when your stranded on the road.

Anyway, that's just my 2 cents opinion 😀
 
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