I fitted an 88 degree in my Spanish Terrano, daughter, who uses it when I'm not in Spain, complained that when doing the morning school run the heater didn't get warm until she'd reached the school, about 5 miles away. Now says it's warm in half a mile or so.
Bought it from a Spanish motor factors, thermostat was fine but the gasket didn't fit, the holes were positioned wrong. Luckily when I lifted the housing the old gasket remained fully intact stuck to the block so I just left it there - been no leak from it since job was done last December.