Mpg

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Cheney663
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Engine size/power: 2.0 CR TDI (108bhp)

Mpg

Post by Cheney663 » Sun Apr 01, 2018 3:11 pm

Hi Everyone, I have taken off my winter wheels (205/55/16 Pirelli snow control) and put on summer tyres and wheels. The wheels are 17” with 225/45/17 Michelin primacy tyres on the rear and primacy pilots on the front. The mpg has dropped by at least 5mpg to 7mpg and there is quite a bit of road noise. Is this the norm? The front tyres are a little stepped on the inside but not bad and the tyres have 5/7mm all round, any feed back gladly received. G


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WRLondon
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Re: Mpg

Post by WRLondon » Thu May 17, 2018 9:49 pm

This is worthwhile info lol
What engine do you have?

Usually would be a minor affect on mpg getting going, or town driving
Shouldn’t be much if you mainly do motorway mileage

Ginger
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Engine size/power: 1.6 CR TDI (102bhp)

Re: Mpg

Post by Ginger » Wed Jul 25, 2018 7:59 am

Hi Cheney663

tyres have a big effect on MPG. this is why all new tyres are sold with a efficiency rating and a lot of new cars now have thinner tyres.

i have found the sportier you go the more the MPG drops. but yes there are other factors such as driving conditions to think of as well

hope this helps

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NZDubNurd
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Location: Whangarei, New Zealand

Re: Mpg

Post by NZDubNurd » Wed Jul 25, 2018 8:08 pm

There are a lot of factors that affect the MPG with tyres.

Even the bigger rims being heavier means you have more weight to spin up every time you accelerate.

https://www.caranddriver.com/features/e ... res-tested

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