STIHL HP Ultra Two-Stroke Engine Oil

STIHL HP Ultra Two-Stroke Engine Oil is a fully synthetic, high-performance oil developed specifically for STIHL’s most advanced two-stroke and 4-MIX engines. Whether you’re using a chainsaw, brushcutter, hedge trimmer, or blower, this oil is engineered to perform in the most demanding conditions and during prolonged use. Developed by STIHL’s own experts, it delivers exceptional lubrication, engine cleanliness, and long-term protection—making it the premium choice for professional and high-frequency users.

Reliable Performance and Protection

HP Ultra is formulated with ash-free additives that deliver extremely low-residue combustion, helping to keep engine components significantly cleaner over time. Its low-sulphur content further reduces emissions and environmental impact, while the biodegradable composition makes it ideal for use in sensitive outdoor areas. The oil supports smooth engine operation, reduces wear, and minimises the build-up of deposits in the piston and exhaust system—ensuring long-lasting performance and reduced maintenance requirements.

It mixes reliably at a 50:1 fuel-to-oil ratio and is especially recommended for STIHL 4-MIX engines, though it’s equally suitable for all STIHL two-stroke tools that operate under this standard.

Meets Industry Standards

STIHL HP Ultra meets key performance classifications, including JASO-FD and ISO-L-EGB, which indicate excellent engine cleanliness and lubrication even under extended, high-load operation. Whether you’re a homeowner tackling frequent gardening tasks or a contractor running tools day in and day out, HP Ultra provides peace of mind and industry-leading protection.

A Size for Every Need

This oil is available in 100ml bottles—ideal for occasional top-ups or small fuel mixes—and a 1 litre bottle with an integrated measuring chamber, perfect for precise and convenient mixing during regular use. Both options are compact, easy to store, and designed to support efficiency and accuracy on the job.

Protect Your Investment

Choosing STIHL HP Ultra Two-Stroke Engine Oil means giving your tools the best possible protection. With its fully synthetic formula, ash-free combustion, and outstanding lubrication, this oil keeps your engine running cleaner, smoother, and longer. It’s STIHL’s highest-grade oil—and the ideal partner for your most trusted machines.