Interesting I could see that there was a post by alfasud.ti but couldn't read it for at least 30mins, the forum just would show the page, hence my dodgy reply above.
Originally Posted by alfasud.ti
Well, this guy has a stock 2.5 V6 with considerably less torque than a modified JTD like yours, and certainly more "linear" power output as a N/A engine. The roads where he tested the diff are very slippery, i can assure you of that, but there wasn't any ice because the outside temp is still well above 5 degrees in Athens. IMO nothing can save you from an ice patch if BOTH tractive wheels hit it, apart from tires with spikes of course.
Yes, Fear the all powerful JTD
Its not particularly ice its the type of roads they are thats the issue, guaranteed at least once every few months even more around this time of year I will see a car on its roof, in a field etc. nearly always a hot hatch though end of last year an STi was off so 4wd is not infallable, Thursday on a less difficult section of a pretty slow A road just out of the exit of a roundabout a 993 was at the otherside of the road on its roof, very mangled so when I say conditions are sketchy its not just hard for the FWD Alfa diff or no diff.