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This AM, I got the Expy stuck trying to leave my driveway through some drifts of 2-3 feet of fresh snow. Be it in 4x4 high or low.
The above tires were set to 50psi back in Sept and in these temperatures (-10 degrees C) they now read 45psi (I haven't deflated them).
Has anyone got any winning strategies for moving through this depth of snow? How far can I deflate this sort of tire without compromising the tire safety on the highway?
It also depends upon the snow. If it froze or is very dense it makes it that much harder to get through and like hkiefus said: "..momentum is your friend.." Hit as hard as you can with out breaking parts can still leave you high-centered. Just depends.
aalso be sure you are where the road actually is. deep snow drift can hide deep ditches. occasional drifts can be pounded thru but a continous trek is next to impossible.
Those tires are made for mud not snow, snow tires have many "sipes" small groves in the tread that help grab ice and packed snow. I run Cooper M&S and never have a problem. I am in Western New York and been through 3 feet of snow in 4x4 high no problem.
When it comes to snow you either go through it, over it, or around it.
Through it involves momentum (as stated by others), high clearance height, and some narrow tires to cut down to traction.
Over it involves a little ity bity Samuri running 44s.
Around it is usually the easiest but not so easy when the road is only driveway width.
2'-3' drifts would catch just about anybody at slow speeds.
I put those Les Schwab brand Wildcat SST snow tires on my wifes expy, we go up to
the mountains few times a years for snowmobiling, and with them aired to 34 psi they perform great in the snow, from powder to soggy and all in btwn up to 3 ft of the stuff.
Run your tires at 35 psi and you will have better traction. I switched to a less agressive tread to reduce road noise and find that I cannot go through deep snow like I could with the Dunlop A/t's. I live in Ottawa, Canada and we don't get heavy snow fall very often - it's just real cold!
I dropped the pressure to 35 psi and did some test runs through some deep stuff - it's much better. The Expy sort of floats on the snow - surprising as it's about 2.5 tons.
Check before siping your tires, Lots of manufactures will void the warranty if you do
that. And thats becuz most tires are already engineered with siping in them.