Daveesrt6 , does the 275/35/19 tyres vary the speedo reading very much. although the crossfire rides pretty good. for long distance work an improvement on ride would, for me, be an advantage, as I am close to needing new rear tyres . what brand did you choose? I was thinking along the Hancook brand. Saltiga

 

My 285/35 dws at 75 mph is off about 1 mph.
I have had
Yokohama
good year f1 sport 285/35
Gmax 275/35
Dws 285/35

I am in mine 2-4 hours twice a week for work.

Depends what you want the tires for, summer only, heavy rain, winter, light snow etc.
The dws might do a hair better in snow but the Gmax was better in rain, and I liked the fact that I could unmount and remount on other rim so the inside was on the outside, had over 30k miles on them when I got the new dws.

 

Thanks for the info. as I live in Adelaide South Australia the chance of snow is about the same odds as me flying to the moon, so mainly dry weather tyres would be the go, As its used as a weekender I choose the weather to be dry, At the moment I am only managing about 6k per year, so at 30k wear for tyres gives me 5 , probably enough time to arrange a trip to the moon!!! Saltiga

 

Alot more options for tires that do not see cold weather and heavy rain, like I do.
Let us know what you end up with.

When you get your trip to the moon post pics.

 

I have Pirelli Pzeros, 275/35/19 ,235/40/18 .
they really GRIP and improved the steering too. The ride is much better than stock size on the crap roads , I am very happy with them.
They put the speedo out by a couple of ks only.

 

I am ready to put new rear tires on the XF . going with Goodyear 255 x 35R x 19XL (stock size) eagle sport all season 50k mile.

 

That is what I just got on the rear. I didn't do much looking, I had a sidewall blowout after hitting something unknown, and I limped to a local tire shop. That was the best option they carried. I am concerned about the 50K mile warranty though. Their paperwork didn't mention it, but most places say something like "50,000 mile warranty, ½ that if front and rear are different sizes" or something like that indicating they will only be on the rear and getting worn faster. My question would be, do I get a 75,000 mile warranty on the fronts?
As for the tires themselves, It is crappy cold weather here, and nothing hooks up well. They seem fine to drive on, not excessively noisy. I haven't been in standing snow yet to test that, but rain seems fine.

 

That is my understanding also on the staggered fit warranty, all of my tire research has resulted in either no warranty or half the warranty for the rear.

 

If you don't bring it up, maybe they won't notice .......

 

That is my hope, assuming I need to worry about it in the first place, who knows what I will be driving 20,000 more miles from now. I have been looking at 2005+ SLKs from info I stumbled across, and they are really starting to get under my skin. Only about 1 in 10 is a 6 speed (on the SLK350)