I'm new to this board and have appreciated the enormous amount of info and opinions on tire selection. After researching for several weeks, I purchased a set of the Cooper ATWs, 275 70 R18, for my 2013 Landcruiser and installed on stock wheels. I've driven them for 2 days thus far, and while the ride and handling are great, there is a high pitched whine at highway speeds (60-80 mph) that after 20 minutes or so feels as if someone has struck a tuning fork and stuck it in my right ear. It is definitely tire noise. I'm by no means an expert on tires, but know that proper inflation can impact road noise. After the evening commute tonight I checked tire pressure and discovered it was lower than the sensors were showing (actual psi approx 35 psi), so I have pressured up to about 45 psi and will see if it makes any difference. Any feedback or advice on this issue would be much appreciated - either specific to the ATWs or general troubleshooting recommendations. Thanks in advance.
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I actually laughed out loud...