Holden-made V6 turbo recalled in US

LOW-OCTANE fuel has been blamed for a number of failures of Holden-built turbo V6s powering luxury Cadillac SUVs in North America, triggering a vehicle safety recall in the United States.

The 2.8-litre LP9 turbo engine – a 224kW high-performance variant of General Motors’ high-feature V6 that also powers the Holden Commodore and numerous other GM products – is built exclusively at the Port Melbourne plant in Australia for export to Cadillac, Saab and Opel.

However, the finger of blame for the latest problem appears to be pointed at GM Powertrain engineers, not at the factory producing it.

The turbo variant was largely engineered at Saab when it was a GM subsidiary. Working in tandem with their American powertrain counterparts in Pontiac, Michigan, these turbo engine specialists created the LP9 variant for vehicles such as the Saab 9-5 and forthcoming 9-4X SUV, GM Europe’s Opel Insignia OPC and Vauxhall Insignia VRX, and the Mexican-built Cadillac SRX.

They appear not to have anticipated that some American Cadillac SRX drivers might fill their vehicles with low-octane 87 or 88 petrol, despite clear labels warning to use only premium fuel (rated as 91 in the US).

In some cases, the poor fuel appears to have overwhelmed the anti-knock capability of the engine, causing catastrophic failure – the engine blows up.

727190853 Holden made V6 turbo recalled in US

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