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#1 | ||
FF.Com.Au Hardcore
Join Date: Apr 2006
Posts: 976
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I recently changed from 195-45/16 Hankook evo S1's to 205-40/17 Toyo proxes 4's and my average fuel consumption has changed from 5.5L/100 to 5.8L/100.
Also worth mentioning is that while waiting for the new wheels I was running the skinny spare on the front and averaged 5.3L/100 with that and 3 or the Hankooks. It's quite interesting to me how much difference slight changes in Tyre combinations make and also with the km's we do the Toyo's are going to cost about $300 extra in fuel per year, they also happen to not feel anywhere near as direct when driving. They do have one good point and that is the car is almost silent on them, compared to very loud on the Hankooks. Anyone else got some similar stories to add to the knowledge base? I wouldn't mind finding out if there's a more ideal tyre in the 205-40/17 or even if there's a 195-45 that will go on a 17x7 inch rim |
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#2 | ||
LZ Titanium Focus
Join Date: Aug 2011
Posts: 24
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I recently (2000km) switched out my woeful "green" 14" tyres that came with my Econetic to a set of 15" Hankooks from the Lx model. The fuel economy went from 4.2 to 4.7 Ltr/100km, but who cares when the handling and grip has improved so much. Feels like a different car.
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#3 | ||
FF.Com.Au Hardcore
Join Date: Jun 2009
Posts: 612
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We just swapped the continental originals to a Yokohama S Drive's which are a more aggressive tyre. Its added about .3 to a usual tank and they are the same size and width.
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#4 | ||
FF.Com.Au Hardcore
Join Date: Apr 2006
Posts: 976
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Sounds like Ford Germany did their tyre research then. With both the Hankooks and Continentals being quite a fast tyre to use a bicycle term for one that doesn't suck many watts of power out of your legs
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#5 | ||
Regular Member
Join Date: Jun 2011
Posts: 40
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Greenfoam,
One thing to remember is that the change in profile and width will change the rolling diameter of the rims and with this your speedo (and odometer) will change by a small percentage. I noticed in another post that you said the speedo is now spot on, assuming that it under read before like most modern cars, your original fuel figures would have been a little inacurrate as well. There are a couple of sites on the net where you can enter varying tyre sizes and it will tell you the variation in rolling diameter, speedo etc. Google tyre or tire size calculator. Cheers Moorie. |
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#6 | ||
FF.Com.Au Hardcore
Join Date: Apr 2006
Posts: 976
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That's a good point on the speed (and distance) being different. I guess I need to do more sums
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