I HAVE A ASV SR 80 SEEMS SIUGGISH IN THE DRIVE CONTROLS WHEN I STOP IT KREEPS AHEAD AND TURNS TO THE RIGHT A BIT .SEEMS DELAYED BETWEEN FORWARD AND REVERSE. I CONTACTED TEREX SERVICE THEY TOLD ME TO CHANGE THE HYDRAULIC OIL AND FILTERS .HAS ANYONE ELSE HAD A SIMILAR PROBLEM AND WILL THIS REMEDY WORK.