Sierra Premium Blend TC-W3 2-Cycle Outboard Engine Oil - Available in Pint, Quart, and Gallon Sizes
Sierra Premium Blend TC-W3 2-Cycle Outboard Engine Oil - Available in Pint, Quart, and Gallon Sizes
Sierra Premium Blend TC-W3 2-Cycle Outboard Engine Oil is a marine-grade lubricant formulated for two-stroke outboard engines that run on oil injection systems or pre-mix fuel. The TC-W3 premium blend is designed and manufactured to meet and exceed engine manufacturer warranty requirements, giving boaters a dependable oil for routine engine maintenance and fuel mixing.
The formulation is built to reduce ring sticking, control deposit formation, and prevent exhaust port blockage, all common failure points in two-stroke marine engines that run on low-quality oil. By reducing wear on critical internal components, the oil helps extend engine life and maintain consistent performance across a boating season. It is packaged in a bottle for straightforward pouring into an oil injection reservoir or fuel mix container.
This oil is offered as a product line across three container sizes, from a single pint for topping off to a full gallon for owners who run through oil quickly or maintain multiple engines. All sizes share the same TC-W3 premium blend formulation; only the container volume changes between options.
Specifications
- Brand: Sierra
- Manufacturer Part Number: 18-9500
- Product Type: 2-Cycle Outboard Engine Oil
- Formulation: TC-W3 Premium Blend
- Application: Oil injection systems or pre-mix fuel in 2-stroke outboard engines
- Container Type: Bottle
- Flash Point: 74 degrees Celsius
- Available Sizes: Pint, Quart, Gallon
- Pint Case Pack: 12 per case (473 ml each)
- Quart Case Pack: 12 per case (946 ml each)
- Gallon Case Pack: 6 per case (3.78 L each)
Sizes & Options
Choose the container size that matches how much oil you go through. The Pint is suited to topping off an oil injection reservoir or mixing small batches of fuel. The Quart covers routine maintenance and mid-season top-offs. The Gallon is intended for owners mixing larger volumes of fuel, running multiple two-stroke engines, or wanting fewer repurchases across a season. All three sizes contain the identical TC-W3 premium blend formulation.
Frequently Asked Questions
What is Sierra 18-9500 oil designed for? Sierra 18-9500 is a TC-W3 Premium Blend 2-cycle oil formulated for outboard engines that use an oil injection system or run on pre-mixed fuel.
Which sizes does this oil come in? The Sierra 18-9500 line is available in a Pint (473 ml), a Quart (946 ml), and a Gallon (3.78 L), all packaged in bottles.
How do I know which size to buy? Pick the Pint for topping off an oil injection reservoir or small fuel mix batches, the Quart for routine maintenance, and the Gallon if you run multiple two-stroke engines or mix fuel in larger volumes.
Is this oil suitable for pre-mix fuel or only oil injection systems? Sierra 18-9500 Premium Blend TC-W3 oil is ideal for either use, working in oil injection systems as well as pre-mix fuel applications.
What does TC-W3 mean? TC-W3 is the oil specification this Sierra premium blend is formulated to, indicating it is designed and manufactured to meet and exceed engine manufacturers' warranty requirements for two-stroke marine engines.
Will this oil help with ring sticking or carbon deposits? Yes, the Sierra 18-9500 Premium Blend is formulated to reduce ring sticking, deposit formation, and exhaust port blockage in two-stroke outboard engines.
What is the flash point of this oil? The flash point of Sierra 18-9500 Premium Blend TC-W3 oil is 74 degrees Celsius.
How many bottles come in a case of the Pint or Quart size? Both the Pint and Quart sizes of Sierra 18-9500 are packed 12 bottles per case, while the Gallon size is packed 6 bottles per case.
Does using this oil affect engine longevity? The Sierra 18-9500 formulation is designed to reduce wear on critical engine components, which helps extend engine life and maintain performance over time.
Is the container material or packaging the same across all sizes? Yes, every size in the Sierra 18-9500 line, Pint, Quart, and Gallon, is packaged in a bottle; only the volume changes between options.