
NHTSA Probes Post-Recall Failures in GM's 6.2L V8
GM’s recall of nearly 600,000 L87 6.2L V8 engines included thicker oil and other fixes, but hundreds of engines have failed after the repair, prompting a NHTSA Engineering Analysis that now covers almost 1 million engines through 2026. Reports show 499 post-recall failures (473 after thicker oil, 26 replacement engines) and 6,953 post-recall GM reports, raising questions about the fix’s effectiveness as GM moves to a 6.6L engine for 2027 models.













