Civic VX - which tires is better to use for MPG
I know that the factory size is 165/70/13 but will 155/80/13 give me better MPG. When I bought my VX it cames with some new tires and I thought they were 175/70/13. Upon inspecting it, I found out that they were 185/70/13. I'm trying to purchase some new tires for it and I was debating between the 165/70/13 and the 155/80/13. Do you guys think I will be fine with some 175/70/13? What is best for MPG (92 civic vx FED Model).
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I would suspect that the 185/70 would do best, if you could find them.
Between the 165/70 and 155/80 it's a toss-up. The 155/80 is a little taller but the 165/70 is a little wider. My research indicates that, counterintuitively, wider is better for fuel economy. Is your driving more city or more highway? |
By far better than any of these for increasing MPG would be to get a set of 14" wheels and get the 165/65/14 Bridgestone Potenza RE92 tires used on the Insight-I. I installed them on my car and their rolling resistance is well below that of any of the 175/70/13 or 165/70/13 tires that I've had on my car over the years.
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In my sig, there is a link to my thread on tire width where I placed an excessive quantity of my thoughts and research. In short, I can't prove that either narrower or wider is better for fuel economy. What I do have is an understanding of some underlying principles that don't get much thought in general.
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There's also these issues, which may be less important:
Additional issues:
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the holy cow, Could you give a size comparison to wrap my thoughts around. Thanks, Jim
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What sizes would I compare?
I really can't quantify the possible gains. It's all theory, there's barely any data out there. |
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