[DieselDoctor]

Has anyone come up with a clean way of filling a hydro rear axle that fills thru the dipstick tube? If you fill too quickly it traps the displaced air until it burps blowing oil all over. Last one I did, I used an old squeeze bottle from a liter of 90W gear oil. I was able to force Hytrans in and then allow the air to escape back into the bottle, but it still created a big mess. I'd be interested in hearing how others do this.