Friday, August 7, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Ford E-150 2003–2008technical service bulletin

Bulletin SSM 51909 · NHTSA communication 10243490 · issued Sep 7, 2023

Technical service bulletin
communication type
Power Train
component
2003–2008
model years
60
vehicle entries

Official summary

When performing any transmission fluid changes or topoffs involving MERCON SP, MERCON LV has replaced all versions of MERCON SP and can be used going forward. Mixing MERCON LV and MERCON SP in the same transmission is acceptable. After 30-Jun-2023, MERCON SP ATF will no longer be manufactured and will only be available until inventory depletes.

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.