BREAKING: GM is officially recalling the L87

[KMeloney]

EDIT: 2024 Yukon XL Denali at 30,900 miles. "Recall repair" for L87 completed last November.

What “recall repair” was done?

 

[cjlewis]

Feds Opens New Investigation Into GM's 6.2-Liter V-8 Over Owner Claims Recall Fix Didn't Take

Some owners claim that their engines failed even after a recall remedy was performed, NHTSA officials say.

www.roadandtrack.com

 

[Aggie76]

Anyone see the following and have any comments? Found it on Motorbiscuit.com tonight.

"Previously, OW-20 oil was recommended for the engines. But GM mandated that if engines passed inspection, they needed Mobil 1 Supercar 0W-40 oil instead. If they failed inspection, they got replaced.

But according to Car and Driver, it’s time to change oil types again. GM issued a bulletin to dealers instructing them to use Mobil 1 FS 0W-40 now.

Reportedly, the 0W-40 oil corrected the issue related to the recall. However, the FS 0W-40 is more affordable and widely available to provide savings."

Assume the "FS" stands for Full Synthetic.

 

[Marky Dissod]

Reportedly, 0W40 oil corrected the issue related to the recall.

How in the fu, kdoes 0w40 'correct' bad or unfinished machining? How does 0w40 protect the bearings from loose debris that was not washed out before assembly?
How does 0w40 get rid of the swarf in the oil pan?

 

[2024 White Tahoe]

Not the Tahoe - but more manufacturing debris problems with a different GM truck engine: https://gmauthority.com/blog/2026/0...erado-colorado-traverse-engine-ticking-noise/

 

[Aggie76]

How in the fu, kdoes 0w40 'correct' bad or unfinished machining? How does 0w40 protect the bearings from loose debris that was not washed out before assembly?
How does 0w40 get rid of the swarf in the oil pan?

Clearly it doesn't. Someone is drinking the kool aid.

 

[DontTaseMeBro]

Anyone see the following and have any comments? Found it on Motorbiscuit.com tonight.

"Previously, OW-20 oil was recommended for the engines. But GM mandated that if engines passed inspection, they needed Mobil 1 Supercar 0W-40 oil instead. If they failed inspection, they got replaced.

But according to Car and Driver, it’s time to change oil types again. GM issued a bulletin to dealers instructing them to use Mobil 1 FS 0W-40 now.

Reportedly, the 0W-40 oil corrected the issue related to the recall. However, the FS 0W-40 is more affordable and widely available to provide savings."

Assume the "FS" stands for Full Synthetic.

Ha! Jokes on them. I never bought into the Supercar variant and instead opted to buy/use the European Car Formula 0W-40 due to it costing half as much per quart. My money is on that is what they're talking about in this latest change. Cause the only other 0W-40 offering by Mobil 1 is ESP variant which is for DPF-equipped diesels and it's not Dexos R approved. The other two are.