I changed the 20l oil pump of our 1986 5245 for a 32 liter pump, to make the front loader work at acceptable speed... I will put one on my 5718 too, when i'm restoring it...
My 5718 runs only 100 hours a year, mostly bale collecting and manure spreading for the man i rent a house and a workshop, and sometimes earthmoving with 10-12 ton dumpers.. Then tree cutting with the manbasket on the frontloader to provide firewood for the workshop, and all the lifting jobs around the workshop... But i take the 3011 for most of the jobs, even when transporting soil through the city with a 6 ton trailer, it uses only 2 liter an hour