Replacing a single tire

I'd only run mismatched if I absolutely had no choice. There have been instances of insurance companies fighting people on claims when running tires out of spec. I wouldn't want to give them more ammunition.
 
Doesnt matter, its not a supercar. replace that one tire and call it a day..
This

Depends on the car, if it’s a normal entry level car, don’t worry about it.
Even your insurance won’t mind.
 
In the UK, all the major tyre stores put the new tyres for FWDs at the rear. They will refuse to put your new tyres at the front as south Africans think we should do. I challenged that once and was told in no uncertain terms that the fleet provider would also not authorise it.

Reasoning is that the rear has no/less control in aquaplaning conditions and therefore it's better to put the new tyres there to give better grip , and as as with FWD, you have steering control , the used tyres should stay there. I read up on it at the time and there was science for it. I do the same here in South Africa now .

As to the OP, as per @RonSwanson, swap spare with new tyre if it makes sense or keep the mismatched tyres at front if FWD
 
Top tip.. Next time fit tires with road hazard cover.. In most cases the tire will be replaced with the same one that's on the car...
 
In the UK, all the major tyre stores put the new tyres for FWDs at the rear. They will refuse to put your new tyres at the front as south Africans think we should do. I challenged that once and was told in no uncertain terms that the fleet provider would also not authorise it.

Reasoning is that the rear has no/less control in aquaplaning conditions and therefore it's better to put the new tyres there to give better grip , and as as with FWD, you have steering control , the used tyres should stay there. I read up on it at the time and there was science for it. I do the same here in South Africa now .

As to the OP, as per @RonSwanson, swap spare with new tyre if it makes sense or keep the mismatched tyres at front if FWD

At the risk of getting off topic: There are pros and cons to every argument, and vehicle safety and road conditions in the UK are very different from SA. You need to consider the total lifetime of the tires, and whether they will be rotated or not, and also if you drive until the minimum tread depth. I would be very uncomfortable having a high speed blowout on the front axle, and rather have older tyres on the rear. As the saying goes, your mileage may vary...
 
Top tip.. Next time fit tires with road hazard cover.. In most cases the tire will be replaced with the same one that's on the car...
I know of Bridgestone and Firestone giving these "warranties", but then again there are terms and conditions, only for 17" and higher etc.
My understanding is that you can claim from the municipality in any case, and yes, it takes long, but you can claim nonetheless.

Just came back from PE via Gariep dam, the roads are in a worse state than 3 years ago. Due to the rate of my pothole reporting (every 3 seconds) Waze threatened to block me. The <deleted/> municipalities clearly don't give a fsck and they are totally useless cnuts.
 
I know of Bridgestone and Firestone giving these "warranties", but then again there are terms and conditions, only for 17" and higher etc.
I had two 15" Firestone tires fitted on my Np200 and got the warrantee, was done at Supaquick.
 
only if the wear is very close. personally i replace both. but if its a daily where you dont care too much for spirited driving, it will be fine
 
The reason why it's best practice to have the tyres with the most thread and grip on the rear is because it's much easier to act in an understeer situation as opposed to oversteer if the rear let's go mid corner

oversteer is way more fun
 
In the UK, all the major tyre stores put the new tyres for FWDs at the rear. They will refuse to put your new tyres at the front as south Africans think we should do. I challenged that once and was told in no uncertain terms that the fleet provider would also not authorise it.

Reasoning is that the rear has no/less control in aquaplaning conditions and therefore it's better to put the new tyres there to give better grip , and as as with FWD, you have steering control , the used tyres should stay there. I read up on it at the time and there was science for it. I do the same here in South Africa now .

As to the OP, as per @RonSwanson, swap spare with new tyre if it makes sense or keep the mismatched tyres at front if FWD
I'd love to see the science behind that
 
At OP, this has become an interesting topic. I have always accepted it as fact that if you have to do it, you can only have two sets of tyres on car, i.e. same tyres on one axle.

Seeing differing views is interesting, so I googled and read up on the topic, the protyre was the best in terms of information and then the blackburn. Will continue read and then I will make up my mind.

Thats my advice to you, read up and make up your own mind.









 

There is one quote which shows how ridiculous some parts of this discussion are:
There’s one exception to the rule
It’s true. There are some cars – like some rear-wheel-drive Mercedes-Benz and BMWs – that come off the production line fitted with wider tyres on the rear wheels. However, this does not equate to a tyre size mismatch, since exactly the same tyres are fitted to any single axel, and the vehicle manufacturer has made a deliberate decision to enhance the traction on the rear driving wheels.
 
At OP, this has become an interesting topic. I have always accepted it as fact that if you have to do it, you can only have two sets of tyres on car, i.e. same tyres on one axle.

Seeing differing views is interesting, so I googled and read up on the topic, the protyre was the best in terms of information and then the blackburn. Will continue read and then I will make up my mind.

Thats my advice to you, read up and make up your own mind.









You know, I always thought same tyre on an axle.

Before I sold the pug, I had mis-matched ****, mainly cause I was going to sell it. It was a 200hp beast, and I had zero issues. Sure, that was a few months.
 
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