The wife needs new tyres on her bmw it's the family car and is never driven hard as she has the kids in it
Would I be mad putting winter tyres on it for all year round what do you guys think.
Cheers
Keith
Sort answer:
Yes run winters all year, especially if you do limited mileage and don't need super high performance grip in summer.
Longer answer:
In theory winters will wear quicker and give less grip in summer than a proper summer tyre... that said...
Broad rules of thumb:
- under 7 degrees Celsius winters always better
- 8-15 degrees winters and summers have similar performance (although in the wet winters might have an advantage)
- over 20 degrees summer tyres have a performance and wear advantage (how many days in the year is that in Ireland?)
- Note: little known fact, but you have to run about 10-15% higher tyre pressure with winter tyres than the indicated tyre pressure which is based on summer tyres. Better grip (sounds counter intuitive but correct though), better steering input response, less heat build-up in the tyre and hence less wear.
Real world experience in Ireland:
1) For the past 5 years and 100k kms we have been running winter tyres all year round on the Hyundai Tuscon 4wd. During that time and mileage it went through 2 full sets (8 tyres), which given the road surfaces where I live is nothing (context: I go through two sets in under half that with either the Scoobies and Quattro diesels I have had - which you could contribute to faster driving, but also driven plenty in the Tuscon and Maebh in the other cars). So, whereas I wouldn't say winters last longer than summers, they do not seem to have a noticeable shorter life span. Our climate is probably the largest influencing factor and the poor road surfaces wear tyres faster anyway.
2) Ran winters all year round on my V70 AWD (as didn't need high performance grip in summer)... similar wear and under normal driving conditions no adverse effects in summer.