Fuelube is proud to announce another significant step in our commitment to quality and engine oil performance!

In an official technical confirmation letter dated 15 October 2026, Afton Chemical, a globally recognized lubricant additive technology company, confirmed that Fuelube SAE 15W-40 and SAE 20W-50 Synthetic Blend CI4/SL engine oil formulations meet the performance requirements of Caterpillar ECF-1a.

Formulated with Afton Chemical’s HiTEC® 12235 additive package at the recommended 9.7% mass treat rate, these engine oils are developed to meet demanding heavy-duty diesel engine lubrication requirements.

This confirmation highlights Fuelube’s dedication to carefully developed formulations, reliable lubrication technology, and consistent product quality.

As Fuelube continues to grow, we remain committed to delivering engine oils designed to meet recognized industry performance standards and support the needs of motorists and commercial operators alike.

Fuelube — Driven by Quality, Powered by Performance!

Note: This performance confirmation applies to the specified formulations and recommended blending procedures outlined in Afton Chemical's letter.