Fuel consumption on 4th series - Toyota Prius Forum : Toyota Prius Forums
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post #1 of 2 Old 09-09-2018, 09:59 PM Thread Starter
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Default Fuel consumption on 4th series

I have been driven NHW20 for 12 years and after 180K miles, I have purchased a 1 year old ZVW50. I used to average around 45mpg in the summer and 55 mpg in the cooler seasons on the 20 series. The new car I purchased is on a set of 225/40/18 ZR tires ( the ex owner choice..). But it can only do less than 41-43 mpg. I was expecting better fuel burn on a newer car but not sure is it because of the tire or other factor. I am just wondering what is your average mpg on the stock set of 215/25/17? I am thinking of changing back to smaller tire. Also what is your choice of better fuel burn tires?
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post #2 of 2 Old 09-12-2018, 09:26 AM
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Pretty much NOBODY refers to their cars with those model numbers. Knowing the model year might be more helpful.

And yes, Z rated tires are rated for something like 160 MPH are are soft and sticky and would have a negative impact on your fuel mileage......especially if they are wider.

'17 Prius C-4
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