STIHL HP Ultra 50:1 Fully Synthetic 2-Cycle Engine Oil – Genuine OEM (2.6 oz, 6 Pack)

Product Number: 26HPU-6

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Product Brand: Stihl
Product Type: Parts

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The STIHL HP Ultra 50:1 2-Cycle Engine Oil is a fully synthetic, genuine STIHL OEM engine oil engineered to provide maximum protection and superior cleanliness for today’s high-performance, air-cooled two-stroke engines. This 6-pack of 2.6 oz bottles is designed for easy, accurate fuel mixing—one bottle per gallon of gasoline at STIHL’s recommended 50:1 mix ratio.

This product is brand-new, factory original, and sold by an authorized STIHL dealer. It is not aftermarket, not universal oil, and not a substitute blend.


Why Choose STIHL HP Ultra Synthetic Oil?

  • Genuine STIHL OEM – Fully Synthetic Formula
    Engineered by STIHL to deliver superior lubrication, reduced wear, and exceptional engine cleanliness.

  • Outstanding Engine Cleaning Performance
    Helps reduce carbon buildup, piston deposits, and exhaust port blockage.

  • Ultra Lubricating Protection
    Provides superior film strength and protection for high-RPM, high-load two-stroke engines.

  • Exact 50:1 Mix – No Measuring Needed
    One 2.6 oz bottle mixes with one gallon of gasoline, every time.

  • Professional-Grade Performance
    Ideal for chainsaws, trimmers, blowers, and other STIHL gasoline-powered tools.

  • Long Shelf Life
    Unopened containers have a shelf life of up to 4 years when stored in original sealed packaging.


Mix Ratio & Fuel Requirements

  • Oil Type: STIHL HP Ultra Fully Synthetic 2-Cycle Engine Oil

  • Mix Ratio: 50:1

  • Mixing Instructions:
    Mix one 2.6 oz bottle with one gallon of gasoline

  • Fuel Recommendation:
    Use high-quality regular unleaded gasoline (minimum 89 octane)


STIHL Warranty Advantage

When used according to STIHL recommendations, STIHL HP Ultra Oil may qualify for extended limited warranty coverage when purchased with select STIHL gasoline-powered products for personal, non-income-producing use.
Restrictions apply. See your STIHL dealer or refer to the official STIHL Limited Warranty Policy for details.


Common Search Terms & Cross References (SEO Strength)

This product is commonly searched as:

  • STIHL HP Ultra oil

  • STIHL 50:1 synthetic oil

  • STIHL 1 gallon mix

  • STIHL gas mix

  • STIHL Ultra 2-cycle oil

Related STIHL part numbers:

  • 0781 313 8002 (this item)

  • 0781 313 8003

  • 0781 313 8004


Technical Specifications

Specification Details
Brand STIHL
Product Name HP Ultra 2-Cycle Engine Oil
Oil Type Fully Synthetic
Mix Ratio 50:1
Bottle Size 2.6 oz
Quantity 6 Bottles
Total Volume 15.6 oz
Engine Type Air-Cooled 2-Stroke
Fuel Requirement 89 Octane Minimum
Shelf Life Up to 4 Years (Unopened)
Condition New
Manufacturer STIHL

Authorized STIHL Dealer – OEM Guarantee

This listing is for a new, unused, genuine STIHL OEM product, sold by an authorized STIHL dealer. All oil meets STIHL factory specifications and is intended for correct lubrication, protection, and engine longevity when used as directed.


Why Use STIHL HP Ultra Instead of Standard or Universal Oil?

Generic or non-synthetic oils can lead to:

  • Increased carbon deposits

  • Reduced lubrication at high RPM

  • Shortened engine life

STIHL HP Ultra provides maximum protection, especially under heavy load and professional-use conditions.


Frequently Asked Questions (FAQ)

Is this oil fully synthetic?
Yes. STIHL HP Ultra is a fully synthetic 2-cycle engine oil.

How much fuel does one bottle mix?
One 2.6 oz bottle mixes with one gallon of gasoline at a 50:1 ratio.

Can I use this oil in all STIHL 2-cycle equipment?
Yes, it is designed for STIHL chainsaws, trimmers, blowers, and other 2-cycle engines requiring a 50:1 mix.

Does this oil help keep engines cleaner?
Yes. HP Ultra is formulated for excellent engine cleanliness and reduced carbon buildup.

Is this product new?
Yes. It is brand-new, unused, and factory sealed.