HP Ultra 2-Cycle Engine Oil - 1 Gallon Jug (128 ounces) Compatible with STIHL, Husqvarna, Echo and More, OEM 0781-313-8014

What It Is

This is a 1-gallon jug (128 oz) of HP Ultra 2-cycle engine oil, pre-mixed at a 50:1 ratio. It’s designed for air-cooled two-stroke engines in handheld outdoor power equipment like chainsaws, trimmers, blowers, and hedge trimmers.

Fitment & Compatibility

• Brands: Compatible with STIHL, Husqvarna, Echo, Poulan, Ryobi, and most other 2-cycle brands—but not for 4-cycle engines.
• OEM Reference: Husqvarna OEM 0781-313-8014; also cross-references to STIHL 0781-313-8014 and Echo 645-015-3010.
• Mix Ratio: Pre-mixed at 50:1—use only in engines that require 50:1. Do not use in engines needing 40:1 or 32:1.
• Volume: 128 oz (1 gallon) treats 6 gallons of fuel. Check your machine’s fuel tank size to avoid waste—this is a bulk buy.
• Bottle Check: Confirm the jug is sealed and has a pour spout; some users report leaking if the cap is loose.

Key Things to Know

• Quality: Low ash, high detergent formula reduces carbon build-up and extends spark plug life. Meets JASO FD, ISO L-EGD, and API TC standards.
• Installation: No mixing required—just shake the jug, pour directly into your fuel can, then add gasoline. No special tools.
• Common Gotchas: Store in a cool, dry place; oil can thicken or separate in extreme cold. Do not use in engines requiring synthetic blend or non-synthetic oil.
• Shelf Life: Unopened, lasts ~3 years. Once opened, use within 6 months to maintain viscosity.

Should You Buy It

Buy this if you own multiple 2-cycle tools (chainsaws, trimmers, blowers) and want a single, pre-mixed, high-quality oil that simplifies fueling. Skip it if you only have one small tool—a quart or 2.5-gallon bottle is cheaper and less wasteful.