Why does GM keep reusing engine codes?

Many GM engines share similar RPO codes; multiple different blocks are known as LS6 or LT1. But there's actually a reason as ...

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.
GM Authority

GM Keeping A Close Eye On Duramax Diesel LZ0 Engine Issues

Quality issues related to the 3.0L I6 LZ0 turbodiesel Duramax are drawing more and more attention online, and in response, GM has issued a new Service Bulletin.
SlashGear

Common Problems With The GM 2.7L TurboMax Engine, According To Drivers

GM's 2.7L TurboMax engine is a great example of how automakers are favoring downsizing and turbocharging in favor of high cylinder counts and large capacities these days. The engine, which was ...

Drivers Say GM Fixed Their V8s, But The Engines Still Died

The government is investigating dozens of new complaints about L87 V8s failing after a recall fix was supposed to resolve the ...
SlashGear

Does The TurboMax Engine Require Premium Gas? Here's Which Rating Chevy Recommends

The past few years have seen General Motors (GM) introduce a fresh range of gas-fueled powertrains that deliver plenty of power and reasonable fuel economy. The 2.7-liter turbocharged L3B inline-four ...