Stihl Ultra 2-Cycle Engine Oil 2.6 oz 6-Pack — Fully Synthetic, Biodegradable

STIHL Ultra 2-Cycle Engine Oil (2.6 oz) is a fully synthetic, high-performance lubricant formulated for two-stroke engines used in chainsaws and handheld power tools.

Designed for professional and consumer outdoor power equipment, this six-pack of compact 2.6-ounce bottles delivers a concentrated, biodegradable oil intended to improve lubrication and help keep combustion chambers cleaner than many conventional two-stroke oils. The fully synthetic formulation provides consistent viscosity under load and resists deposits, while the small bottles are convenient for mixing fuel at the job site or in the field.

How does this oil help my chainsaw perform?

STIHL Ultra's synthetic base and additive package reduce friction and wear, promoting smoother operation and reliable response under heavy cutting loads. Cleaner combustion characteristics help limit carbon buildup, which supports more consistent power output over time.

• Fully synthetic formula helps maintain stable lubrication at high temperatures
• Engine-cleaning additives reduce deposit formation in combustion zones
• Improved wear protection for piston and crank components
• Small bottle size for accurate fuel-oil mixing on the job

Is this oil environmentally friendly or biodegradable?

Yes — the STIHL Ultra 2-cycle oil is formulated to be highly biodegradable, with substantial degradation within weeks under typical conditions. While biodegradability reduces environmental persistence, proper handling and disposal are still recommended to limit any impact.

• Approximately 80% biodegradation in 21 days under standard test conditions
• Lower environmental persistence compared with many mineral oils
• Compatible with outdoor use in forestry, landscaping, and property maintenance

How should I use and store these 2.6-ounce bottles?

The 2.6-ounce size is intended for precise fuel mixing with small fuel tanks or for carrying spares in a tool bag. Store bottles upright in a cool, dry place away from open flames and extreme heat, and follow fuel-mixing ratios recommended by your tool manufacturer.

• Use manufacturer-recommended oil-to-fuel ratios for two-stroke engines
• Carry unopened bottles in a tool pouch for field refueling
• Seal tightly after use to prevent contamination and evaporation
• Dispose of empty containers according to local regulations

Will this work with other brands or models of two-stroke tools?

STIHL Ultra is suitable for most high-performance two-stroke engines that require a synthetic two-cycle oil. Always confirm compatibility with your engine’s manual; some manufacturers specify their own branded oils or specific certifications.

• Appropriate for modern high-revving chainsaws and handheld equipment
• Check your owner’s manual for required oil specifications
• Safe for use where synthetic two-stroke oil is recommended

Who is this for? This six-pack of STIHL 2.6-ounce Ultra 2-Cycle Engine Oil is ideal for pro arborists, landscapers, and homeowners who need a compact, high-performance synthetic oil for frequent field mixing. It suits users who value cleaner-running engines, strong lubricity under heavy load, and a more biodegradable option for outdoor applications. For daily site use or occasional refills, the small bottles make transport and accurate dosing straightforward while delivering STIHL's engineered oil performance.