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🛥️ Keep your marine engine running smooth — because your boat deserves the best!
STAR BRITE Star Tron High Viscosity 80W90 Lower Unit Gear Lube is a premium marine lubricant formulated to meet rigorous MIL-PSF-2105E and API standards. It offers superior anti-wear, rust, and corrosion protection for outboard motors and stern drives from top brands like Mercury, Yamaha, and Volvo. Compatible with fresh and saltwater use, it maintains optimal gear performance up to 275°F without voiding manufacturer warranties. Packaged in a convenient 32 oz bottle, it’s trusted by professionals and boating enthusiasts alike for long-lasting sterndrive protection.







| ASIN | B000RZNK5K |
| Best Sellers Rank | #5,850 in Automotive ( See Top 100 in Automotive ) #14 in Gear Oils |
| Brand | STAR BRITE |
| Brand Name | STAR BRITE |
| Container Type | Bottle |
| Customer Reviews | 4.6 out of 5 stars 193 Reviews |
| Global Trade Identification Number | 00071247270327 |
| Item Form | Liquid |
| Item Highlight | Premium SAE 80W-90 gear lube protects marine lower units with wear, rust, and corrosion resistance in fresh and saltwater. |
| Item Weight | 0.91 kg |
| Liquid Volume | 32 fluid ounces |
| Manufacturer | Star brite |
| Material | Gear Lube |
| Model Number | 027032 |
| Number of Items | 1 |
| Package Information | Bottle |
| Part Number | 027032 |
| Recommended Uses For Product | Lube |
| Specific Uses For Product | Lower units of all outboard motors and stern drives |
| UPC | 071247270327 |
| Unit Count | 32 Fluid Ounces |
| Upper Temperature Rating | 275 °F |
| Viscosity | 80W90 |
B**N
Quality Sterndrive Oil!
I’ve been using this gear oil in my older OMC Cobra sterndrive for years. I strictly use the boat in salt water. It has over 800 hours on the sterndrive. I appreciate the quality, protection level, and affordability.
T**N
Good product
Good product
H**N
Delivery quick product should be fine
Seems good
E**.
I use this oil in the lower unit of a 150hp EVinrude
The oil quality is very good for use in marine outoard lower units.
F**Y
Good so far
Bought this for lower unit lube in my small outboards. Seems like good stuff so far!
G**Y
Good quality gear oil.
Great reliable gear oil. I use it in my Yamaha SHO 115. It cost less and easier find available. With quick delivery.
R**M
Gear lube
Very handy tube for adding or replacing lower unit gear lube in a small outboard motor. Cut small section of tube nozzle off and then nozzle fits tight in the filler hole with no leakage. Screw cap works well to seal tube when saving extra not used for another fill up. My vintage outboard (1970) called for this type of gear lube.
A**T
Starbright
150 hp Yamaha outboard lower unit
C**S
lubricante cola de motor
Muy bueno.perfecto
C**L
Grasa
No la e usado todavía pero se ve bien
M**L
Buen producto
Cumple su función
Trustpilot
4 days ago
3 weeks ago