I wasn't sure where to post this, but here it goes. I need a versatile pressure washer that can clean any surface from vehicles to siding etc. How much PSI/GPM do I need. Also what brand? Karcher and DeWalt both seem to have nice units. I had a Karcher 3100 PSI with the 9 HP Subaru, but I got rid of it because the Subaru leaked oil really bad from the bearing. Right now I am considering a Karcher with around 2500 PSI and a Honds GC engine for around $300-400. I want something that will last, but this machine will not be used a ton. Thanks for any help.