As I approach my 500 hr. service as recommended per LS to change the hydraulic fluid (11.4 gallons) I checked into changing with Amsoil synthetic hydro fluid. I was shocked when 15 gallons with tax was over $720.00. Needless to say I'm not going that route. I'm sure it's a great fluid and am not bashing Amsoil at all but I just couldn't justify the cost. I'm just going to use a good quality fluid possibly from NAPA or equivalent. Does anyone use Amsoil hydro fluid?