I am planning to chnage the standard size tyres of Toyota Passo 2011 to 14 inch or 15 inch low profile tyres.I hope that this will improve ground clearance But how much it can educe fuel economy of my car????Currently, im getting 12.3 in city with AC
it will damage your suspension & seriously dent the fuel economy.
you can choose different profile & foot print within same wheel size without compromising the fuel consumption & ride comfort.
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