I have owned this Y/H or look a like sorta for almost 2 yrs. I treat it like a cheep oar, cheep oil (straight 30 weight non detergent) haven't changed the oil yet lol and have filled my C/F wrapped bottle so many times I lost count. Biggest thing I do is keep ice in the water to keep her cool. I paid 200 bux shipped and am happy as a clam.I run it 30-40 minutes straight until my bottle tops off at 300bar.never stop and start but if you need to purge before you restart so the motor has no back pressure.