Can we use snow tires on it and if so what kind and size. for a 2007 mercury mountineer

Fat as possible.

Couple of common choices around here
If you want an All terrain that's good in the snow, rain and quiet, go with Cooper Discover AT/3 or more aggressive Goodyear Duractrac.

If you want Best MPG
Michelin Latitude tours

Tons of other great tire choices, but you didn't give us any details =(

Hello, I can tell you about my 2002 Gran Marquis LSE wheels and tires. On my car which had the 16" Wheels, Mercury wanted a low rider style for all chassis, including Police cars. They used "60" Series tires and when parking mine, the front concrete curb stops would consistently allow the front bumper cover or the air dam underneath the car to hit. ( Partially from the settling of the Air Suspension.) Even snow covered roads would scrap the car bottom. I bumped my tires up to a 65 Series which seemed a good compromise and it helped. A 75 Series may do you good on 15" rims.

I started looking for taller tires to raise the body. I found a good Website in DiscountTires.com, which when you plug in different tires OR rim sizes will give you the Speedo error for a few preset speeds. The site also lists Alternative tire sizes normally used for YOUR car and Level 1, Level 2, wheel upgrades which is tire jargon known to some.

You can get some Speedos Electronically recalculated for the different tires or wheel sizes. Just make sure the new wheels need the same thickness of studs as are on your car. You need to watch the clearance at the front tires' back wheel lip and the inside of the tire by the frame.

You can ask a tire store to pull 1 tire in your size and roll out a few other sizes and stand them side by side to see the difference in height. I hope you have found my solution very helpful in making your choice.

I am Not sure if they still make a Finland tire called Nikia . I used for delivery i all kinds of weather and could go places police couldn't

most of the original tires on these cars aren't much good in foul weather after 15-20,000 miles, you need to replace those tires with ones with good all-weather or a true snow tire tread. I'm assuming you have been having snow.

these are big rivets you have to take a small punch and punch out the center pin looking thing ......then u can drill the rest of the rivets out and by the way u will need either this same rivet size which is one fourth inch and the rivets to put back together

best way to tell is to look at the old ones. The size will be clearly marked on the sidewall. Also, it may have the tire size on the driver's side door jam, where the weight limitation sticker is.

Laura, from factory the car came with 215 x 55 x 17``tires. The actual number is printed on the sidewall.
< This means you have 17`` rims, with 215 mm tire tread width and the sidewall height of the tire is equal to 55% of the tread width. This is referred to as the tires profile...
If by chance you are shopping for snow tires you can install a complete 16`` winter wheel set , tires and rims with the same overall outer diameter as a 17`` set, because the 16 or 17 only defines the hole size in the tire ....however the sidewall height and tread width would be different on a 16``tire.

pulls codes first auto zone checks for free

The only tire I would recommend as an all season tire would be the Goodyear Assurance Triple Tread, they're supposed to be good for light snow, summer, and winter...