Mismatched tires - is it ok to change 2 tires or do I have to change all 4 at once?

I am thinking of buying a used car but it has 2 front tires that are one brand, and 2 back tires that are another. I'm thinking of just getting the tires all the same brand, but then some will be newer than others, does that matter?Mismatched tires - is it ok to change 2 tires or do I have to change all 4 at once?
It depends of the car. It is important If you are buying a 4 wheel drive, has to be same tires, new by preference or used equally. If the car is front wheel drive, the newer tires should be in the front. If back wheel drive, the newer tires should be in the back. Hope it helps!
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Mismatched tires - is it ok to change 2 tires or do I have to change all 4 at once?
It is better to have 4 similar tyres, but if you can't afford 4 new ones you will do no harm by driving on different tyres. Put the best ones on the front also.
I do it all the time makes no differance as long as the tires are the same size they will be just fine 4x4 FWD RWD it all works out the same in the end heck I evan do it with my big duallies and trailersMismatched tires - is it ok to change 2 tires or do I have to change all 4 at once?
as long as they are rated the same, meaning same size, width etc... you are fine. Each tire has a code looks like this



165/65r/15



just compare all 4 and make sure they are the same
All four of my tires are different name brands... and it runs great.. as long as they all in good shape, and are balanced .. it'll prob run smother with all the same, but it's good enough
well they say you should have all four the same brand, however it does not really matter, it does detract a bit from resale price, but I have ran tires of different brand, as long as they are proper size and legal!! Some vehicles will wear tires unevenly, usually tires of different brand says something about the person or maintenance of the vehicle, if the tires were rotated at proper intervals, they would all be worn out, hence all needing to be replaced at the same time. on rear wheel drive vehicles, or I guess front too, they may have done a lot of tire spinning!!- I would look close at the wear of the tires to check for possible mechanical problems or adjustments. Or did they just throw a new set on the front to hide a misalignment problem. You never know!!But yes it is OK!
It all depends on what type of drive system it has. If it is a FWD or RWD, Just as long as the two front or two rear match it's okay. If it is an AWD or 4WD all tires should have the same tread pattern.
No. It's not permissible to mix different sizes, steel braced with textile braced or cross plies with radials.



However a set of matching tyres is always the best scenario.



PS: Always put the best tyres on the front.
This type of condition is and can be an indicator of poor car maintenance due to the fact that it can show the lack of tire rotation.

you may went to ask for maintenance records.

it is a good practice to rotate your tire every other oil change.

Other than that pairing of the tires should not be a problem.
as long as the vehicle is not 4 wheel drive having mismatched tires front to rear is not going to be any trouble. however you would never want mismatched tires and the driven axle. (front wheel drive would be the front axle and rear wheel drive would be the rear axle).