When I purchased the XF a couple of years ago the dealer put four new tires on but they are some inexpensive ones. Truth is they cost about $130 a piece. I have heard that a good tire will make quite a difference in ride so I am now looking to upgrade and experience this.
I'd like to go with one size wider on both front and back. Is this possible to do? I currently have P255/35ZR20's on the front (8.5" rims) and would like to go with P265's. Back are P285/30ZR20's (9.5" rims) and would like to go with P295's. The tire dealer I am ordering from told me that they ( CONTINENTAL EXTREME CONTACT SPORT) should fit just fine. Pretty sure clearance will be ok all they way around but will the current rims be ok to handle these? From what I have read online you need a 9.0" rim for P265 and a 10.5" rim for a P295. Is the dealer correct that they will be ok? I have tried to use the search in this forum but have not come across a related thread that specifically answers this.
Appreciate any input you guys may have on this. Thanks.

 

Not Recommended.

If you can get your hands on a set of XJ wheels, they measure 9 inch front and 10 inch rear with suitable offset that comfliments the XF (F type wheels wont fit). Your poor experience may be a result of subpar tires more so than the size. A decent set of Michelin Pilot Sport 4S, Pirelli P Zero, or Continental Contact Sport among other good tires would address that. Keep rolling diamter is mind if the car in question is AWD, which yours isn't based on the V8.

 

Thanks for the reply Zereldo. Jaguar placed a 285 on a 9.5" rim in which your chart says 275 is the max for this size. This is what puzzled me. Today I am going to call the tire dealer and inform them that I want to stick to the sizes that are currently on the vehicle. I don't want any safety issues. They have already ordered them and delivery is supposed to be today. This will only push the install back a couple of days.
If I didn't like the Draco wheels as much as I do I would consider changing them out to a bigger size (pretty pricey to replace). The fact is I already have a new front Draco wheel on the way. The previous owner scratched the drivers side up pretty good and I finally ordered a replacement this Saturday. As for the ride itself I only know what it has been like since I purchased the vehicle so I can't say it has been a poor experience.
Thanks again Zereldo.

 

After more research and a few phone calls I made an appointment to have the wider tires installed this Saturday morning. It turns out that the factory wheels are sufficient in size to accommodate the wider tires.
I guess the Dealer knew what he was talking about. Looking forward to the install. New Draco wheel arrives today via FedEx.
I'll post a photo or two after the change out.