Just went to my local parts supplier and requested a thermostat for my 86
Syncro 2.1 litre.  Asked for the 87 degree stock unit and they only had 80
degree ones made by Mahle and from Germany.

So now I turn to the experts of the list and ask for the official opinion -
do I return this thermostat and seek out a stock unit or go with the Mahle?

Thanks.

Bruce