I had Dunlop ST30 tyres on all wheels. Just had my 100000 km service and told my tyres need replacing soon. Excellent run. Never heard of 100000km out of one set of tyres.

On my KX-R 2wd, driving 60% highway 40% dirt with basically no city driving the OEM Dunlops returned 60,000km, I replaced them with the same again and got another 60,000km, no wheel alignments, no punctures, just very reliable, quiet, safe driving throughout western Qld. The economy was excellent, at around 8.
I then fitted Michelin Grandtrek HT, which I found very similar in driving feel, but slightly quieter and returned better economy and wear.

I had my OEM tyres on my Toyota Kluger KXR AWD replaced with 54,000 kms on the odometer after 4 yrs of ownership. But I expected more from the Dunlop tyres to last longer than 54,000 kms's, considering I mostly drove in the city and metropolitan areas. I don't trash the car when driving and I slow down around roundabouts. The tyres squeal when going around roundabouts regardless of tyre pressure pumped up to 38 psi or below. The tyres were maintained (e.g. rotated) along with the scheduled servicing of the car. The tyres seem to hold well on snowy and wet roads.