Stihl 0781 319 8015 High Performance 2-Cycle Engine Oil, 6.4oz, Pack Of 6

What It Is

This is Stihl’s HP Ultra 2-cycle engine oil, pre-measured in 6.4 oz bottles (6-pack). It’s formulated for air-cooled, high-revving 2-stroke engines found in Stihl trimmers, chainsaws, blowers, and hedge trimmers. The 50:1 mix ratio (2.6 oz per gallon) reduces smoke and deposits.

Fitment & Compatibility

• Brand: Stihl only. Not for use in 4-cycle engines or other brands’ 2-cycle equipment (different oil specs).
• Mix ratio: 50:1 (2.6 oz per gallon of gasoline). Do not use with pre-mixed fuel or other ratios.
• Fuel type: For use with unleaded gasoline up to 10% ethanol (E10). Not for E15 or higher blends.
• Bottle size: 6.4 oz treats 2.5 gallons of gas. Each pack of 6 treats 15 gallons total.
• OEM vs aftermarket: This is genuine Stihl oil. Aftermarket alternatives (e.g., Echo Red Armor) are compatible but not identical.

Key Things to Know

• No measuring needed – each bottle is pre-measured for exactly 2.5 gallons at 50:1. Pour the whole bottle into a gas can, then add fuel.
• Low smoke formula – reduces visible exhaust smoke and carbon buildup on spark plugs and muffler screens.
• Storage – store in a cool, dry place. Oil degrades over time; don’t buy more than a year’s supply.
• Not for high ethanol – if you run E15 or E85, this oil won’t protect against phase separation or corrosion. Use Stihl MotoMix instead.

Should You Buy It

Buy this if you own a Stihl 2-cycle tool and want a no-mix, low-smoke oil that’s guaranteed to meet Stihl’s warranty requirements. It’s ideal for occasional users who don’t want to measure ratios, and for anyone who values reduced smoke and deposits over price. If you run other brands or higher ethanol fuels, look elsewhere.