It buzzes almost constantly, with a couple of exceptions when it is quiet, only if it is new asphalt and if the temperature is below 0. The first year everything is fine, the quiet one is almost inaudible, it started to buzz at +10, but after 5-10 minutes it gets quieter as it warms up. The second year the noise level increased, at the beginning of the season it was already buzzing at +15, but also after 10 minutes it became quieter and having probably already
It has 35,000 total miles on it…