Tire tread cut repair possible? [Updated]
I don't know how accurate this diagram is but it looks like if the inner most layer is not damaged then I should ok with sealing the tread from the outside.
[IMG]http://www.michelinman.com/content/dam/ ... 140630.jpg[/IMG]
I lucked out and found a pair of used michelin primacy mxv4 tires with almost the same tread wear as mine (it looks like a difference of 1/32" which is negligible IMO). So I replaced the damaged one with one of those and the other one I'll make a full size spare out of it. It has room for a full size spare so might as well keep a full size.
Tread wear on the used tire I bought, a tad above 6/32"
Tread wear on my existing front passenger side, a tad below 6/32"