Compare tyres and find the best price

Choosing the perfect tyre is easy

TCS comparison test of different all season tyres in summer and winter conditions

The Swiss Touring Club drivers association has conducted a comparison test of all season tyres with seasonal tyres in the size 225/40 R18 92Y.

2018 All season tyre test: TCS compares performances in summer and winter

All season tyres tested and compared on their summer and winter performances. © Adobe

4 types of tyres tested

While TCS is accustomed to conducting “traditional” tests of summer, winter and all season tyres, the Swiss drivers association has innovated for its latest comparison test. TCS has noted an increasing demand for all season tyres over the last years, whether it is to replace summer tyres or even winter tyres. This is why the Swiss Touring Club wanted to find out the truth about all season tyres performances in both summer and winter conditions.

If no specific product is mentioned, TCS has compared a summer-like all season tyre and a winter-like all season tyre with a summer tyre in summer conditions and a winter tyre in winter conditions. The 225/40 R18 92Y size was chosen.

 

In summer, best not to get it wrong

TCS tests are very clear. In summer conditions with an outside temperature of 26°C, its best to choose the right type of tyre. In dry braking tests, the summer tyre needed 33 metres to come to a standstill from 100 km/h. If the summer-like all season tyre was not far behind (37 metres), it needed an additional 4 metres to stop. But it is with the winter-like all season tyre that things become interesting. It needed 49 metres to come to a complete standstill on this surface, i.e. 16 more metres than the summer tyre. In other words, when the vehicle equipped with summer tyres has stopped, the vehicle equipped with the winter-like all season tyres is still travelling at 57 km/h. On the whole, TCS also noted better steering stability with summer tyres than with the winter-like all season tyres.

Braking distance of different summer and all season tyres on dry track

On wet roads, for emergency braking from 80 km/h to a standstill, the vehicle equipped with summer tyres was also the most efficient with a braking distance of 21 metres. The summer-like all seasons tyre came close with a braking distance of 23 metres. Once again, the winter-like all season tyre was further behind with a braking distance of 28 metres which results in a speed of 40 km/h when the vehicle fitted with summer tyres has stopped.

Braking distance of summer and all season tyres on a wet track

In winter, be careful not to lose control

TCS headed to the Swiss Alps to test the winter capabilities of its all season tyres. On a snow covered surface and an outside temperature of 2.5°C, the vehicles were driven at 50 km/h. At this speed, winter tyres do the job with a braking distance of 25 metres. The vehicle equipped with the winter-like all season tyres required an extra metre to stop. The observation is the same for the vehicle equipped with summer-like all season tyres which required 29 metres to come to a standstill, i.e. 20 km/h when the vehicle equipped with winter tyres has stopped. 

Braking distance of winter and all season tyres on snow

The Swiss Touring Club also tested the handling and traction of these different tyres. As such, each vehicle accelerated on a snow-covered straight line to reach a speed of 35 km/h. If once again winter tyres are the best, closely followed by the winter-like all season tyre, the vehicle equipped with summer-like all season tyres needed 9 more seconds to reach this speed.

In an obstacle avoidance test, once again on snow the winter tyre offered a safe drive. Although the winter-like all season tyre remained stable, it was slightly hesitant. As for the summer-like all season tyre, it was unpredictable causing serious safety problems.

RELATED ARTICLES

2019 Tyre test: Gute Fahrt compares summer tyres for compact cars

The German car magazine Gute Fahrt has tested 10 summer tyres in the size 225/40 R18 with 2 other tyres compared for 17 and 19 inch wheels.

2019 Summer SUV tyre test: Auto Motor und Sport compares 11 tyres

For its 2019 comparison test of SUV tyres, the German magazine Auto Motor und Sport has tested 11 summer tyres in the size 215/55 R17.

Michelin named tyre manufacturer of the year by Auto Bild after performance tests

Auto Bild has named Michelin “Manufacturer of the year – Summer 2019” for the consistency of its braking results in the last 5 summer tyre tests.

2019 Summer tyre test: Auto Zeitung comparison test of 18 inch tyres for passenger cars

Auto Zeitung selected 9 summer tyres and one all season tyre for its 2019 tyre test. If, on the whole, the results are consistent with the magazine’s expectations, certain tyres are surprising.