Fuel Consumption & Tyre Rolling Resistance?
Discussion
Need a set of new tyres for a banger which is used only in summer ,this time I want to calculate the total costs you end up paying in all other aspects ( how long tyre lasts for, fuel consumption etc) to see if a more expensive tyre actually maybe is cheaper in the end than a mid-range tyre which costs less in purchase price at start.
Generally what kind of fuel reduction in % can you get if you Swap from a Mid-range OKish tyre to a Premium tyre which promises lower rolling resistance? Is it like 2-3% reduction swapping from an OK tyre to very good tyre or more like 10% reduction?
I know rolling resistance for bicycle tyres makes a damn huge difference and you are a fool if you don't get good rolling tyres, but cars travel at much higher speeds where most of the energy is spent on Air Drag not rolling.
Any real world examples from those who have swapped and measured the consumption difference?
Generally what kind of fuel reduction in % can you get if you Swap from a Mid-range OKish tyre to a Premium tyre which promises lower rolling resistance? Is it like 2-3% reduction swapping from an OK tyre to very good tyre or more like 10% reduction?
I know rolling resistance for bicycle tyres makes a damn huge difference and you are a fool if you don't get good rolling tyres, but cars travel at much higher speeds where most of the energy is spent on Air Drag not rolling.
Any real world examples from those who have swapped and measured the consumption difference?
If it's a banger then why bother?.
I really think that a budget vs premium when it comes to a fuel saving is not really worth comparing. If, say a budget is £40 cheaper than the equivalent Pirelli, then over the life of the tyres the saving in fuel vs purchase costs will weigh in favour of the budgets.
Also, I'd wager even money on the "savings" of "fuel saving" and such tyres are under certain conditions and possibly open to interpretation. you'll get better returns by maintaining tyre pressures and keeping the car running in good order.
I really think that a budget vs premium when it comes to a fuel saving is not really worth comparing. If, say a budget is £40 cheaper than the equivalent Pirelli, then over the life of the tyres the saving in fuel vs purchase costs will weigh in favour of the budgets.
Also, I'd wager even money on the "savings" of "fuel saving" and such tyres are under certain conditions and possibly open to interpretation. you'll get better returns by maintaining tyre pressures and keeping the car running in good order.
Edited by texaxile on Saturday 25th August 20:22
Auto Express test 2018 states :’Roughly speaking, a difference of around five per cent in rolling resistance will mean a one per cent change in fuel consumption.’
https://www.autoexpress.co.uk/accessories-tyres/91...
They test a range of tyres and mention % fuel saving when comparing rolling resistance.
https://www.autoexpress.co.uk/accessories-tyres/91...
They test a range of tyres and mention % fuel saving when comparing rolling resistance.
I don’t think anyone here will have been able to conduct this level of comparison test.
Although there are tests you can search, I even doubt these would give the full comparison you are looking for. I would suggest you read some on line tests and select by your most important criteria (for me that would be wet-braking and wet-cornering).
Although there are tests you can search, I even doubt these would give the full comparison you are looking for. I would suggest you read some on line tests and select by your most important criteria (for me that would be wet-braking and wet-cornering).
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