Looking for help on size of winter tires, my standard tires are 245-40r20 for front and 275-35R20 rear on my XJ
Can I just have the same WINTER tires all round? say like 245-40. Load ratio and speed rating would be equivalent-any thoughts? it would make continued use possible.

 

What does your owner's manual suggest? The reason I ask is because, using my 2010 XF for example, the tire size is 245/40R19 98Y X/L but for winter tires, Jaguar offers multiple options.

Approved winter tyre sizes
Front:
• Dunlop Wintersport M3 - 235/55R17 99H,
245/45R18 96V, 245/45R18 100V,
245/40R19 98V.
• W240 Pirelli Sotto Zero - 245/45R18 100V,
245/40R19 98V, 255/35R20 97V
Rear:
• Dunlop Wintersport M3 - 235/55R17 99H,
245/45R18 96V, 245/45R18 100V,
245/40R19 98V.
• W240 Pirelli Sotto Zero - 245/45R18 100V,
245/40R19 98V, 285/30R20 99V

I wouldn't be surprised if they suggest the 245/40R20 all around. There is also the downsizing of winter tires and the whole debate with the electronics matching the "Contact Patch". I prefer aftermarket rims and TPMS with the winter tires as it gets costly swapping the rubber twice a year. It is fun trying to match the right TPMS to the car though so I usually let the tire shop install their TPMS aftermarket valve so if there is a matching issue (It usually shows up within an hour of driving), they cover the cost to correct.

 

Hi Kkarulak,
I did look in the manual originally, but not since I looked up the cost of recomended tires at over $cad 6000
Then after much ​​surfing the net I came across 10 10 tires, their website is fantastic and even offered a range of tires and rims for a very reasonable price. (I had used them back in 2005 when I ditched the standard S type tires, mentioning no names for Toyo proxes which were a joy to drive.)
I bought the Braelin stone black 19" rims with 8.5 J fronts and 10 J rears with Toyo Observe unstudded tires 245/45/19 102T & 275/35/19 105T for $cad2500 and they were delivered in 5 days. The local CAA service agent installed them for 146 bucks and I've been driving them down to -18C with great looks and enough performance. I don't slip on the exit ramp to the main road now and even if they only last a season or two, I'm sure I'll buy them again.

 

Friends,
apologies for just reading this now. Many make the mistake of putting low profile, wide winter tires on their cars, then learn about hydroplaning.
Also, many follow the summer tire rule of a staggered stance. From a winter driving point of view, it just doesn’t work. I’m with @kkurulak in that I purposely use different rims. Not a staggered stance, higher profile and thinner. There is a good article at tire rack.com and consumerreports.com on this theory. There was also one in Road and Track, I don’t remember the issue.
As for TPMS, as long as you use high quality, same frequency components, there are no issues.

Word of advice, buy the best winter tires that fit your budget. I drive in all kinds of inclement weather, year round. Even up into ski country in the sports car. I have never been off the road and have avoided those who don’t know how to drive in winter, successfully.

 

Hi Guy, thanks for the reply. The black Braelins look sweet on the arctic white XJL and with covid etc I will just be travelling locally. Your note does reinforce though what the Kal-Tire associate mentioned to me years ago, so maybe next winter I will go for the deeper profiles. i'll see how it goes.

 

I am going to be purchasing a 2017 - 2019 F-Type R soon, and I will be searching for winter tires because I live in Chicago. I called Tire Rack, but they don’t have any. Normally, they would carry tires for 20” wheels but they are out of stock. Two questions:

1. Should I go down an inch or two in wheel diameter for my winter tires? This is what I did for my current vehicle, a Mercedes-Benz CLK 550 Cabriolet.
2. What would be a good place to look for these tires, other than this board?

Thanks in advance!

Cheers,
​​​​​​​Lou

 

My previous 2 S types I used a size rim smaller diameter from 17 to 16" and a width less and profile up sized, 16" 225/65, theses worked well for winter tire size the 18 years I drove the 3.0 V6 models with Michelin and even for first few years the Canadian Tire motomaster brand, heck, I'm not proud. They never put me in a difficult position. But these are just my experiences, there are lots of tire suppliers apart from tire rack out there.Good luck. (When my XJL gets out of body's hop, I will post a picture)

 

In addition to the listed Winter tyre options, Jaguar recommend fitting a tow rope and a Land Rover.





This probably wasn't the photo they hoped to see after they invited motoring journalists to their proving grounds in Arjeplog, Sweden.

Graham

 

Thanks Graham,
the photo brought me a wry smile in these Covid times. Thankfully the new jag has awd, not for purists I imagine but more suited to this type of weather, and more comfy than a Land Rover.

Ian.

 

That F-Type looks as its moving as slowly as Arsenal’s midfield.

 

Sorry, I forgot to mention and I assume you already thought of this but be careful on the rim size reduction in comparison to your rotor size.