Suzuki Outboard Gear Lube Capacity Guide

Suzuki Outboard Gear Lube Capacity Guide, Chart & FAQs

Keeping the gear lube in your Suzuki outboard fresh is one of the easiest ways to protect its lower unit and keep it performing at its best. Clean gear lube cushions gears and bearings to help minimize wear and prevent water contamination that can cause costly damage.

For the best results, use a high quality marine gear lubricants. These are specially blended to meet Suzuki's standards and hold up to the demands of boat environments. Enhanced with anti-wear and anti-corrosion additives, marine grade gear lube provides long lasting protection that helps maximie the service life of your outboard.

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Table of Contents

Proper Suzuki Gearcase Maintenance Gear Lube Chart Tips & Frequently Asked Questions

Proper Suzuki Gearcase Maintenance

Maintaining the right amount of gear lube in your Suzuki outboard is essential for protecting the lower unit and ensuring smooth operation. Gear lube should be inspected regularly and replaced at least once per season, or more often, depending on how frequently you run your boat. Watch for signs of milky or discolored lube, this can indicate water intrusion and the need for immediate service.

Always use a marine grade gear lubricant that meet Suzuki's specifications. These gear lubes are engineered to handle high loads, resist foaming, and provide superiuor corrosion protection in marine environments. By staying on top of routine maintenance, you'll extend the life of your outboard and avoide costly repairs down the line.

Suzuki Gear Lube Capacity Chart

Please note that the capacities listed below are approximations and it is recommended to check your service manual for engine specific information.

Click here to download a PDF of the chart below

Model Gear Lube Capacty (CC) Gear Lube Capacity (Oz) Recommended Gear Lube
DT2 (Short Shaft) 70 2.4 High Performance Synthetic Blend Lower Unit Gear Lube 18-9650-2
DT2 (Long Shaft) 120 4
DT3.5 85 2.9
DT4 190 6.4
DF4/6 190 6.4
DT5/6/8 240 11.5
DT8C/9.9C/9.9CN 175 5.9
DF9.9/15 175 5.9
DT9.9/15/15C 170 5.7
DT20/25/30/30C/35C 230 7.8
DF25/30 230 7.8
DT40 610 20.6
DF40/50 610 20.6
DT50/55/60/65 650 22
DF60/70 600 20.3
DT75/85 700 23.7
DT115/140 1100 37.2
DF90/115/140 1050 35.5
DT150/175/200/225 1050 35.5
DF150/175/200/225/250/300 1100 37.2

Suzuki Gearcase & Lubricant Frequently Asked Questions

► How often should I change the gear lube in my Suzuki outboard?

Suzuki recommends changing your gear lube at least once per season, or every 100 hours of operation, wichever comes first. Heavy use, sandy/shallow water. or saltwater boating may require more frequent changes.

► How do I know if my gear lube needs to be replaced sooner?

Check the gear lube for a milky or discolored fluid, metal shavings, or a burnt smell. These are signs of either water intrusion, wear, or overheatings. If encountered you should change your gear lube immediately.

► How do I know how much gear lube my Suzuki outboard needs?

Gear lube capacity varies by engine size and model. Always refer to your owner's manual or our gear lube capacity chart up above.

► Should I replace the drain and vent plug gaskets during each service?

Yes, always replace the gaskets to ensure a proper seal and prevent leaks or water intrusion.

Have questions about your Suzuki outboard oil capacity?

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