read just before flushing it.There usually are arrows to the filter demonstrating you which technique to orient it any time you set it in your air conditioner.Documenting all maintenance and repair may assist assure that you have adequate proof if required to support warranty statements. We retain all details of your system and its maintenance information.Oil that may be much too heavy will not flow effortlessly to all working pieces. Oil that may be much too gentle informative post will never adhere appropriately, triggering inadequate lubrication.