Mixing different type/brand tyres on car? Is it dangerous or just a myth?

AndyMc.....

Joe_Horner wrote: »

Yes it is, because less tread = lower tread blocks = reduced lateral tread movement ("squirm"). But again, the average driver really isn't going to notice the difference either way.

On the road? I'm not sure anyone could tell and any slight difference in pressure would also have an effect.

Joe_Horner

AndyMc..... wrote: »

On the road? I'm not sure anyone could tell and any slight difference in pressure would also have an effect.

Like i said, most people (including a lot of those who swear they can) wouldn't notice the difference in real life. But we're all Lewis Hamilton* without the breaks in life, remember? :beer:





* I'm actually far better than Mr Hamilton - i haven't crashed once in 30+ years but he does several times most seasons :P

sevenhills

AndyMc..... wrote: »

Is it really?

Until the tread is worn away there's the same amount of contact with the road.

We all know from F1 racing that slick tyres - those with no tread - grip the road better in dry conditions. So it didn't surprise that in dry braking, the worn tyres were better than those with full tread. In the wet braking tests, the worn tyres appeared to be on a par with the new budgets


The researchers at the Michelin campus also note that driving on worn tyres offers better fuel consumption than on brand new covers.


https://www.independent.ie/life/motoring/car-news/the-case-for-and-against-running-your-tyres-to-minimum-legal-depth-35795271.html

AndyMc.....

sevenhills wrote: »

We all know from F1 racing that slick tyres - those with no tread - grip the road better in dry conditions. So it didn't surprise that in dry braking, the worn tyres were better than those with full tread. In the wet braking tests, the worn tyres appeared to be on a par with the new budgets


The researchers at the Michelin campus also note that driving on worn tyres offers better fuel consumption than on brand new covers.


https://www.independent.ie/life/motoring/car-news/the-case-for-and-against-running-your-tyres-to-minimum-legal-depth-35795271.html

So what are you're worn budgets going to be like in the wet? :think:

AdrianC

AndyMc..... wrote: »

So what are you're worn budgets going to be like in the wet? :think:

caprikid1

I am surprised this thread has gone on so long.


For me different tyres with different tread depths and different compounds without a doubt will cause the car to handle differently at the extremes.


When I find myself in an emergency stop situation on a wet motorway I would like to stop as fast and safely as possible in a straight line. Tyres is the only thing that contacts the road, they are pretty important. Personally I never mix tyres on a car.


I recently bought a classic mini , mixed budget tyres all round and worn shock absorbers. The difference of top spec tyres and new shock absorbers was night and day.


I am not sure anyone hand on heart would suggest mixed tyres has no difference so why compromise ?

caprikid1

I should also add the difference between budget tyres and premium can be considerable, the difference on a RWD car such as an Ford Capri can be quite incredible.


Budget tyres in the dry can handle the same or worse than premium tyres in the wet. Which for me is quite impressive.

sevenhills

caprikid1 wrote: »

Personally I never mix tyres on a car.

It always comes back to what you define as being 'mixed'.


If you have tyres with a different tread pattern but where all rated B for rain, economy and noise; then they will all be very similar.


The same tyres with different tread depths would handle differently, if you have new suspension on one side, someone should start a thread asking how often people check their tyre pressures, it would certainly be less than once per week.

AdrianC

sevenhills wrote: »

If you have tyres with a different tread pattern but where all rated B for rain, economy and noise; then they will all be very similar.

Those self-certified ratings are a completely different kettle of fishiness.

Takmon

Personally i stick to the same make/model of tyre for all fours wheel on all my cars. I also swap them front to back if needed so that they have as even wear all round as you can get.
I also order the tyres in to make sure i get the ones i want which i had chosen after doing research online.

Most people don't really care and just put on whatever tyre the garage happens to have in stock. This probably isn't too much of a problem but i would rather spend the small amount of extra time knowing i have the best possible chance of coming out of a dodgy situation when driving.