Bloomberg Law
Sept. 29, 2022, 4:43 PM

General Motors Oil-Guzzling Suit by Oklahoma Driver Moves Ahead

Julie Steinberg
Julie Steinberg

An Oklahoma driver’s proposed class action alleging General Motors LLC concealed an engine flaw that causes excessive oil consumption will advance, following a judge’s ruling that he alleged viable warranty breach and other claims.

In 2013, Durwin Hampton bought a 2013 GMC Sierra with a Generation IV Vortec engine. Hampton said he noticed a rattling sound from the engine, and found he consistently has to add two quarts of oil in between normal oil changes.

He alleged that defective piston rings in vehicles equipped with Generation IV engines cause excessive oil consumption, which can damage engine parts. Hampton sued in ...

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