Stihl 3 Pack Synthetic Oil Mix 50:1 HP Ultra 2-Cycle 1 Bottle 2.6 oz = 1 Gal #G

What It Is

This is a three-pack of Stihl HP Ultra 2-cycle oil, pre-measured at 2.6 oz per bottle to mix with 1 gallon of gasoline at a 50:1 ratio. It’s designed for Stihl handheld equipment like chainsaws, trimmers, blowers, and hedge trimmers, but works in any air-cooled 2-cycle engine requiring 50:1 fuel mix.

Fitment & Compatibility

• Engine type: Only for 2-cycle, air-cooled engines. Not for 4-cycle, outboard marine, or water-cooled engines.
• Mix ratio: Strictly 50:1 (1 bottle per 1 gallon of unleaded gasoline). Do not use with 40:1 or 25:1 engines unless specified.
• Brand: Stihl OEM oil, but compatible with any brand of 2-cycle equipment that calls for 50:1 mix (e.g., Husqvarna, Echo, Ryobi, etc.).
• Gasoline: Use with fresh, unleaded fuel (87 octane minimum). Avoid ethanol blends above 10% (E10) to prevent phase separation.
• Pre-check: Verify your equipment’s fuel/oil ratio on the engine label or manual. If it says 50:1, this is a direct fit.

Key Things to Know

• Pre-measured convenience: Each bottle treats exactly 1 gallon—no measuring cup needed. Squeeze entire bottle into empty gas can, then add 1 gallon of fuel.
• Quality: Stihl HP Ultra is a full-synthetic, low-ash oil that reduces spark plug fouling and exhaust port deposits. Exceeds JASO FD, ISO-L-EGD, and API TC standards.
• Installation difficulty: Trivial. Just pour and shake. However, do not mix directly in the equipment fuel tank—use a separate gas can for proper blending.
• Common gotcha: The bottle cap has a “snap” feature to reseal partially used oil, but the 2.6 oz size is meant for one-time use. Do not split a bottle for smaller batches (ratio will be off).

Should You Buy It

Buy this if you own Stihl handheld equipment or any 50:1 2-cycle tool and want a no-measure, synthetic oil that protects against carbon buildup and extends engine life. It’s a premium choice at a fair price for the convenience and quality. Skip it if you need a different mix ratio (e.g., 40:1) or prefer bulk oil to save money.