u/Shot_Battle_4071

Dads 2020 q60 rs had coolant vanishing from the reservoir. Took it to the dealership when we couldn’t figure it out. The oil and coolant mixed with less than 50k miles and now they say it’s 17k before taxes. My question is has anyone had this happen at that low mileage and would a bumper to bumper warranty cover it?

Is the bolt connecting the knuckle to the upper control arm a Nissan specific bolt or can I go and find a bolt the same size?