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Mercury Gearcase Lubricant Capacity Chart - Less than 75 HP

For outboards less than 75 HP Mercury or Quicksilver SAE 80W90 Premium Gear Lube is recommended

This gear lube capacity chart is limited to recent models and has been developed to aid in determining how much gear lube to have on hand when servicing a particular gear housing. Changing and servicing of gear lube should always be performed in accordance with techniques and procedures as outlined in the appropriate service or owner manuals. The quantities shown here are to be regarded as reference only. Any variation from the quantities shown may indicate an incorrect model selection, the wrong service technique or a more serious problem. Contact your local dealer prior to running if this should occur.

BrandModelCycleModel DescriptionOz.mL.
Mercury/Mariner 2.2, 2.5, 3.3 2 cycle   4.5 135
Mercury/Mariner 4, 5 2 cycle   6.8 200
Mercury/Mariner 6, 8, 9.9,15 2 cycle   6.8 200
Mercury/Mariner 20,25 2 cycle   8.8 260
Mercury/Mariner 30,40 2 cycle 2 cylinder 14.9 440
Mercury/Mariner 40, 50 2 cycle 3 cylinder, std. Gearcase 14.9 440
Mercury/Mariner 60 2 cycle Big Foot 22.5 665
Mercury/Mariner 2.5, 3.5 FourStroke   6.1 180
Mercury/Mariner 4, 5 FourStroke   6.8 200
Mercury/Mariner 8/9.9 FourStroke MY 2004 & prior standard gearcase 6.8 200
Mercury/Mariner 8/9.9 FourStroke MY 2005 & newer standard gearcase 10.8 320
Mercury/Mariner 9.9 FourStroke MY 2004 & prior BigFoot 8.8 260
Mercury/Mariner 9.9 FourStroke MY 2005 & newer Big Foot 12.5 370
Mercury/Mariner 15 (323cc) FourStroke Standard Gearcase 6.8 200
Mercury/Mariner 15 (323cc) FourStroke Big Foot 8.8 260
Mercury/Mariner 15 (351cc) FourStroke   12.5 370
Mercury/Mariner 20 (351cc) FourStroke   12.5 370
Mercury/Mariner 25 FourStroke Big Foot, Carb 14.9 440
Mercury/Mariner 25 FourStroke EFI 11.8 350
Mercury/Mariner 30 FourStroke MY 2005 & prior 14.9 440
Mercury/Mariner 30 FourStroke MY 2006 & newer EFI 11.8 350
Mercury/Mariner 30 FourStroke MY 2005 & prior Big Foot 22.5   665
Mercury/Mariner 40 FourStroke 3 cylinder, std. Gearcase 14.9 440
Mercury/Mariner 40 FourStroke 3 cylinder, Big Foot 22.5 665
Mercury/Mariner 40, 45, 50 FourStroke 4 cylinder, 935 cc, std. gearcase 14.9 440
Mercury/Mariner 40, 45, 50 FourStroke 4 cylinder, 935 cc, Big Foot 22.5 655
Mercury/Mariner 40 FourStroke 4 cylinder, 996 cc, Big Foot 24.0 710
Mercury/Mariner 50, 60 FourStroke 4 cylinder, 996 cc, std. gearcase 11.5 340
Mercury/Mariner 50, 60 FourStroke 4 cylinder, 996 cc, Big Foot 24.0 710
Force 5 2 cycle   4.0 120
Force 9.9, 15 2 cycle   6.8 200
Force 25 2 cycle   8.8 260
Force 40, 50 2 cycle   14.9 440

 

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