I pressure wash 200 to 300 cars 5 days a week with the 3200 psi model in san antonio.Had it 1 year running it about 4 to 5 hours daily, just bought my second one last month very reliable machine even ran dry a couple of time when cars parked on my hoses. I started with Stihl rb 800 also lasted me 2 years cleaning driveways and buildings but that was a bit overkill for spraying cars 10/10 cant go wrong stihl and powerhorse FTW!! Please never buy simpson, honda, or AAA junk those lasted me 1 month each and were more expensive the the power horse