mk1 k-jet running between 98 - 102 in traffic, but I've seen it up to 114 when spanking it down the motorway but it still stayed constant and fell if I took my foot of the gas a bit, valvers do run higher than the 8vs and as Slick/Ian Beale/Large portions has already stated, slow down and pull over if you start to hit the mid to high 120s. Best way to keep the temp down is to keep the oil fresh with regular oil changes using quality oil.