OMC Cobra Gear Lube Capacity Guide

Recommended Gear Lube and Service Tips for OMC Cobra Drives

Keeping your OMC Cobra sterndrive properly maintained is essential to ensure smooth shifting, long gear life, and reliable performance on the water. An often overlooked step, is checking and changing your gear lube. Using the right gear lube helps protect against corrosion, reduce wear, and maintain efficiency of your lower unit.

For the best protection, use marine grade gearcase lubricants. BRP's XPS gear lube is specifically formualted for use with OMC Cobra drives. This premium lubricant provides superior wear protection, guards against water instrusion, and resists foam. The advanced formula is ideal for demanding marine conditions while providing you long-lasting lubrication.

Shop All OMC Gear Lubes Here

Table of Contents

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

Proper OMC Cobra Gearcase Maintenance

20 Hour Break In Service

For new OMC Cobra engines, you should change the gear lube after the first 20 hours of runtime or within the first month. This helps remove any metal shavings or contaminants generated during the break in process.

100 Hours or Annually

OMC recommends changing your gear lube every 100 hours of run time or at least once a season, whichever comes first. By regularly servicing your OMC your can ensure proper lubrication that reducess stress on the lower unit while maintaining smooth shifting and performance.

End of Season

When the season is over and you go to put your boat away for the season there are several maintenance steps to take. An important one is replacing your gear lube. Old gear lube can gather water, debris, and contaminants from use during the season. Letting them sit in your system can lead to costly repairs down the doad. Fresh gear lube ensures your OMC Cobra gearcase is fully protected until the next season.

OMC Cobra Gear Lube Capacity Chart

Please nore 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 Capacity Oz Recommended Gear Lube
2.3L, 128 Model 60
2.5L 60
3.0L (1990-93) 64
3.0L 130 Model 60
4.3L 175 Model 64
5.0L 64
5.7L, 260 Model 64
7.5L 108
1990-93 3.0L, 3.0L HO 64
185,200,235 Models 64
262 OMC King Cobra 64
350 OMC King Cobra 64
460 OMC King Cobra 108
460 OMC King Cobra (Cone Clutch) 103
1990-94 King Cobra (Cone Clutch) 103
1994-Thru Cobra (Cone Clutch) 71
1996-Thru Dual Prop 81
1977-86 20
OMC Sail Drive                         

OMC Cobra Gear Lube FAQs

► What type of gear lube should I use in my OMC Cobra Drive?

Always use marine grade gear lube for maximum protection and performance.

► How often should I change my OMC gear lube?

OMC Cobra recommends you replace it after the first 20 hours for new engines, and then every 100 hours or annually after.

► Can I use automotive gear oil in my OMC Cobra Drive?

No, automotive gear oils are not formulated to handle marine conditions like constant moisture and high torque at lower RPMs.

► What are signs that my lower unit needs service?

Milky or cloudy lubricant is an indication of water intrusion. Metal flakes are a sign of an internal gearcase issue and should be inspected immediately.

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