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🛥️ Keep your marine engine running smoother, longer — don’t get left behind!
ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil is a premium marine motor oil designed to exceed NMMA FC-W standards. Its advanced synthetic blend reduces friction and protects against corrosion and wear, specifically engineered for sterndrive and outboard engines. Available in a 4-gallon size, it ensures reliable, long-lasting performance in both fresh and saltwater environments.
| ASIN | B09FB2K53S |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #63,096 in Automotive ( See Top 100 in Automotive ) #471 in Motor Oils |
| Brand | ULTRA 1PLUS |
| Customer Reviews | 4.8 4.8 out of 5 stars (213) |
| Date First Available | April 29, 2020 |
| Flash Point | 446 Degrees Fahrenheit |
| Item Weight | 31.8 pounds |
| Item model number | USB25404TFCW-BG |
| Manufacturer | Ultralub |
| Manufacturer Part Number | USB25404TFCW-BG |
| Model | SAE 25W-40 Synthetic Blend 4T Marine Motor Oil FC-W |
| Package Dimensions | 16.5 x 11.7 x 9.7 inches |
| Size | 4 Gallon (16 QTS) |
| UPC | 810050656276 |
| Vehicle Service Type | Sterndrive, Outboard |
| Viscosity | 25W 40 SAE Grade |
R**R
Great for all engines
Great price,can’t wait to use in my tow truck
C**E
Good oil
Decent oil at a decent price. I have used this oil for a few seasons in my boat. Holds up well. No complaints.
T**K
Economical Marine Oil
Great price on Marine Oil. Meet all API specs for 25w40 marine oil.
E**E
You Can't Beat The Price
I haven't run the motor with this oil, but the price is certainly hard to beat.
B**L
As advertised
As advertised
K**Y
Great value!
Exactly what I need and does what it's supposed to do.
D**K
Strong bottle
Solid packaging so it won’t bust in travel.
A**R
Highly recommend for the savings
Cheapest alternative for Mercruiser oil.
Trustpilot
3 weeks ago
2 days ago