500 Fiat 500 twin air sport

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500 Fiat 500 twin air sport

Average of 45mpg in freezing cold snowing conditions is good - fuel consumption can be 20% more than in 20C dry conditions due to increased rolling resistance, air resistance, air intake temperture and greater lubricant viscosity in winter. Not to mention lower fuel energy density as it is mixed with additives to help cold starting. Expect 55-60mpg for the same trip in dry summer conditions which isn't far off the actual claims.
 
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