Select Your Region
TrusTec® PRF Octane Blend No. 98 is a primary reference fuel with 98% isooctane and 2% n-heptane used to decide octane rating.
Specific gravity at 60/60 °F: 0.6950 – 0.6970
Composition, vol %:
Isooctane: 97.70 – 98.30
n-Heptane: 1.70 – 2.30
Conor Robertson, Technical Specialist
Product recommendations backed by technical expertise.
Fast answers to formulation and application questions.
TrusTec® PRF Octane Blend No. 98 primary reference fuel meets the requirements outlined in ASTM D-2699 and ASTM D-2700 for octane testing. The reference fuel is a blend of 98% isooctane and 2% n-heptane.
Refineries and laboratories require suitable methods to determine gasoline octane rating.
Oil refineries
Gasoline octane analysis
Strategically located across North America and EMEA for fast, reliable delivery. Every order, every time.
We’ve detected that you are located in a different region than the region selected on the website. Would you like to change your region?
Current Region: English - Canada