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Honda Civic Tires and Wheels

238 messages,  Last post on Oct 29, 2009 at 6:41 AM

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#168 of 238 Re: Civic OEM tire replacement [ernest1934] by targettuning Jan 04, 2008 (7:52 am)
Replying to: ernest1934 (Jan 04, 2008 6:59 am)  You took it wrong didn't you??? I am not trying to make friends, I certainly don't believe everything I read on an open forum and since I own that exact car I feel I am fairly qualified to dispute the claim based on my conservative driving style. No matter, my answer to your question is this: There is not enough rolling resistance difference (and I am sure there is some) between any tires in the size for our cars sold by any tire manufacturer on the planet that would account for the loss of 8-10 or12 mpg. Whatever your "problem" is it is it isn't the tires. Yes, you can assume that I have not experienced anything like this on my Civic or ANY vehicle I ever owned and I would be most surprised if anyone else said they did. It is simply too much of a loss to blame on the tires. All my opinion of course...... Replies to this message: kiawah (Jan 05, 2008 2:50 pm) targettuning (Jan 07, 2008 4:36 am) ras314 (Jan 15, 2008 2:34 pm)
#169 of 238 Re: Civic OEM tire replacement [targettuning] by kiawah Jan 05, 2008 (2:50 pm)
Replying to: targettuning (Jan 04, 2008 7:52 am) unless the tires were running about 10 psi, then you'd have a lot or rolling resistance!! Replies to this message: targettuning (Jan 07, 2008 4:36 am) ras314 (Jan 15, 2008 2:34 pm)
#170 of 238 Re: Civic OEM tire replacement [kiawah] by targettuning Jan 07, 2008 (4:36 am)
Replying to: kiawah (Jan 05, 2008 2:50 pm) Well....yes that is true but this person stated he actually increased his tire pressure on the new tires, I stand by my observation that there is no normal way new tires could account for a large fuel economy loss like that. Replies to this message: ras314 (Jan 15, 2008 2:34 pm)
#171 of 238 Re: Civic OEM tire replacement [targettuning] by ras314 Jan 15, 2008 (2:34 pm)
Replying to: targettuning (Jan 07, 2008 4:36 am) Some kind of damage done while changing tires? Warped rims, wheel bearing damage or something? Anything else changed at the same time as the tire change?
#172 of 238 Re: Civic OEM tire replacement [ernest1934] by ernest1934 Jan 15, 2008 (3:05 pm)
Replying to: ernest1934 (Jan 03, 2008 1:07 pm) This information is ONLY for those that believe what I said is credible and are interested in keeping an open mind and seeking information from someone else that may possibly improve their Civic performance.   I have been trying to obtain the numerical rolling resistance for the original and replacement tires without success. However, I just talked to the Honda repair shop and they stated that they have had problems with the 06 Civic Hybrids that came with the same original tires as our non-hybrid EX when the original tires were replaced. The replacement tires have reduced the mileage 4-6 mpg. The reason, as I understood him, had something to do with the construction of the Bridgestone Turanza EL-400 and that the other tires could not compare. I certainly believe him, especially as that came from a Honda man.   Since I believe I have verified that the loss of mpg as stated is due to the replacement tires, I will not respond further.
#173 of 238 36 MPG's by sandman46 Jan 16, 2008 (1:06 pm)
This is the highest mileage I've gotten on the highway with the oem Goodyear RS-A tires so I'm highly doubtful when I hear mileage figures in the mid 40's for non hybrid Civics. I guess it could be acheivable on flat terrain going 65 mph with the cruise on and no a/c but I would suspect 39 would be a more reasonable mpg amount. But anything is possible I suspect...I'm just very skeptical.   The Sandman
#174 of 238 Re: Civic OEM tire replacement [ernest1934] by jet10000 Jan 16, 2008 (2:52 pm)
Replying to: ernest1934 (Jan 03, 2008 1:07 pm) I put Yokohama AVID TRZ as replacements and consistently get highway mileage of 36-40 mpg driving in all the same places. I even added about 10% air pressure (32 to 35psi) with no recognizable benefit. Have others had these problems? What were your actions?   You will probably get a better response if you post your question in the   Honda Civic Real World MPG forum.   That's where the gas mileage experts hang out.   Also if you review the forum called:   Honda Civic Hybrid MPG-Real World Numbers   You will see that the tires that comes standard with the Hybrid can have a big effect on gas mileage. When the standard tires were changed to other tires of the same size, the gas mileage would decrease significantly.   So claims made by others in response to your post, that tires can not affect the gas mileage that much, are not true.
#175 of 238 Apples and oranges by targettuning Jan 17, 2008 (4:45 am)
The original poster who complained about a major loss in fuel economy when changing out the original tires DOES NOT have a Civic hybrid. The hybrid DOES come with very low rolling resistance tires and replacing them when worn with "standard" tires and not the specified original low rolling resistance tires will probably result in decreased fuel economy to some degree since the hybrid tire is designed and specified for use with this car. However, replacing the "standard" Bridgestone EL-400 on any other Civic( EX-LX-DX sedan or coupe) with another brand of equal size will NOT result in major fuel economy loss. In spite of what a Honda employee said (and this guy will readily belive some Honda flack who probably doesn't know any more than you or I) I still don't believe tires can be responsible for the loss as noted...sorry!!! Replies to this message: targettuning (Jan 23, 2008 8:21 am)
#176 of 238 Apples and oranges..further thoughts by targettuning Jan 17, 2008 (6:44 am)
I believe a hybrid car that comes with special low rolling resistance tires as part of the hybrid "package" can probably loose a certain amount of fuel economy if those tires are replaced with normal every day tires due to an increase in rolling resistance. However, a non-hybrid car cannot loose the massive amount of MPG as noted simply because of a tire change to another major brand in the right size. There is no large difference between Goodyear and Bridgestone or Michelin and Dunlop with regard to rolling resistance or it isn't large enough to account for that drop. Hell, if one could gain 8 mpg by changing to a specific brand tire do you think it would be a secret? That company couldn't make enough tires....
#177 of 238 Re: Apples and oranges [targettuning] by targettuning Jan 23, 2008 (8:21 am)
Replying to: targettuning (Jan 17, 2008 4:45 am) This line of debate seems to have died since the original poster doesn't want to hear how wrong his line of thought about different tire brands rolling resistance and the effect on fuel economy is. According to him the original Bridgestone EL-400's were replaced with Yokohama Avid's resulting in a major (8 mpg or more) fuel economy loss. I maintained this was impossible simply due to a tire brand change and this insensed him to the point he no longer replies thinking (correctly) I don't believe in the whole premise. I have since found tire test information that includes comparitive rolling resistances between many brands (Consumer Reports Nov. 2006 issue). According to that test the Bridgestones he praised as delivering superior fuel economy has only "fair" rolling resistance whereas the Yokohama Avids he said has caused massive fuel economy losses (as compared to the original Bridgestones) has "good" rolling resistance. So, if you believe what he said the poorer rated tires gave much better fuel economy than the better rated tires. The "logic" he used is faulty. Go figure??? In any case...if you are still out there...I don't believe what you stated. Tire brands cannot account for the huge differences you report. Case closed as far as I am concerned.

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