ASE Webinar: What’s a Fuel Trim? Decoding Gasoline Engines for the M/H Truck World

by | May 13, 2021 | 0 comments

The National Institute for Automotive Service Excellence (ASE) is hosting a free webinar for service technicians on Friday, May 14 at 4:00 p.m. ET entitled “What’s a Fuel Trim?! – Decoding Gasoline Engines for the M/H Truck World.”

As the final mile delivery continues to grow, so does the medium-duty commercial truck market.

Many customers in this segment prefer gasoline engines for their perceived simplicity and cost per mile with regards to maintenance.

This continuing shift in demand requires even more learning for predominantly diesel technology technicians.

There are several misunderstood gasoline-unique concepts such as fuel trims, oxygen sensors and catalytic converters that need to be understood before proper diagnostics can take place.

Justin Ridings and John Renno, with Isuzu Commercial Truck of America, provide perspective and insight on this shift and will show participants some live data on a complete vehicle chassis dyno.

For those who are not sure they can attend, we encourage them to register so they receive a follow-up email with details on how to attend a recorded session, if available. After registering, a confirmation email will be sent containing information about joining the webinar.

Click here for more information or to register.

About the National Institute for Automotive Service Excellence (ASE) Established in 1972 as a non-profit organization, the National Institute for Automotive Service Excellence (ASE) is a driving force in the transportation industry.

As an independent third party, ASE upholds and promotes high standards of service and repair through the assessment, certification and credentialing of current and future industry professionals, and the prestigious ASE Blue Seal logo identifies professionals who possess the essential knowledge and skills to perform with excellence.

Today, there are approximately 250,000 ASE Certified professionals at work in dealerships, independent shops, collision repair shops, auto parts stores, fleets, schools and colleges throughout the country.

For more information about ASE, visit


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