Bought a Dewalt 32 Ton log splitter and it came with 4.8 gals of hydro oil. The oil is a no name or specs oil and am thinking about running it for an hour to flush out any debris then replacing it and filter with a known brand and spec. Mag 1 is only $50 for 5 gals and read it was made by Warren. Is it worth the $50 to install known quality oil or just run what was included with the splitter? I plan on keeping the splitter for many years and realize its a very basic pump and ram system. Given that, whatever oil is in the splitter will remain for several years.