Gulfstream and Montana Renewables Demonstrate SAF's Potential to Reduce Contrails — Calumet, Inc.

Event summary

Montana Renewables supplied MaxSAF® for Gulfstream's high-altitude emissions testing on the G800 aircraft.
Testing demonstrated a significant reduction in contrail-forming particle emissions using 100% neat SAF at altitudes up to 50,000 feet.
Comparisons were made between conventional Jet-A, low-sulfur Jet-A, and HEFA-based SAF with no sulfur or aromatics.
Montana Renewables is expanding SAF production to meet growing industry demand.

The big picture

This collaboration underscores the growing emphasis on non-CO2 emissions in aviation, particularly contrail formation at high altitudes. As regulatory pressures mount for the industry to reduce its environmental footprint, successful demonstrations like this one could accelerate the shift toward SAF adoption. Montana Renewables' role as a key supplier positions it to benefit from this transition, provided it can scale production efficiently.

What we're watching

Production Scaling: The pace at which Montana Renewables can expand SAF production to meet increasing demand.
Regulatory Influence: How these test results may accelerate adoption of SAF mandates in business aviation.
Market Differentiation: Whether Gulfstream's leadership in high-altitude SAF testing will translate into competitive advantage.