High Performance 2-Cycle Engine Oil - 5.2oz Mix Bottle 0781-319-8049, 0781-319-8051 Compatible with Stihl, Husqvarna, Echo and More, OEM (5.2 ounce bottle, Box of 48 Bottles)

What It Is

This is a pre-measured 5.2-ounce bottle of high-performance 2-cycle engine oil (OEM part numbers 0781-319-8049, 0781-319-8051) designed for mixing with gasoline at a 50:1 ratio. It’s intended for air-cooled, 2-cycle engines in handheld outdoor power equipment like chainsaws, trimmers, blowers, and hedge trimmers.

Fitment & Compatibility

• Mixing ratio: 50:1 (2.6 oz oil per gallon of gas). Do not use with 40:1 or 32:1 engines unless specified.
• Brands: Compatible with Stihl, Husqvarna, Echo, Poulan, Ryobi, and most other 2-cycle handheld equipment. Check your owner’s manual for the required oil type and ratio.
• OEM vs aftermarket: This is Husqvarna-branded OEM oil, but it meets or exceeds API TC and JASO FD standards, so it works in any brand that requires a high-quality synthetic blend.
• What to verify: Confirm your engine is air-cooled, not liquid-cooled (outboard motors need different oil). Also check that your equipment uses a 50:1 mix—older engines may require 40:1 or 32:1.

Key Things to Know

• Pre-measured convenience: Each 5.2 oz bottle treats 1 gallon of gas. No measuring or mess—just dump the whole bottle into a gallon of unleaded fuel and shake.
• Synthetic blend: Reduces smoke, carbon buildup, and spark plug fouling compared to conventional 2-cycle oil. Extends engine life in high-RPM use.
• Storage tip: Keep bottles in a cool, dry place. The oil has a shelf life of about 3 years unopened. Once mixed, use the fuel within 30 days.
• Common gotcha: Do not use in 4-cycle engines or in fuel-injected 2-strokes (e.g., some newer Stihl models with M-Tronic). Always double-check your equipment’s oil type requirement.

Should You Buy It

This is a solid choice if you own multiple 2-cycle tools and want a no-fuss, high-quality oil that meets OEM specs. The box of 48 bottles is ideal for landscapers or heavy users who mix fuel frequently. For occasional home use, a single bottle or smaller pack is more practical—buying 48 bottles at $209.95 is overkill unless you’ll use them within a year or two.