Saturday, August 8, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Chevrolet Express 2008–2018technical service bulletin

Bulletin 17-NA-253 · NHTSA communication 10140379 · issued Aug 31, 2017

Technical service bulletin
communication type
Engine
component
2008–2018
model years
58
vehicle entries

Official summary

This informational bulletin provides information for specification with the engine oil for the Duramax 6.6L engine.

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.