GM’s 4.5-liter Duramax Engine for Caddy Could Deliver Performance and Economy.
Apparently, Cadillac is actively considering fitting its smooth, innovative new 4.5L Duramax V-8 turbodiesel into the engine bay of the Cadillac CTS – which would require the raised hood of the CTS-V.
Initially, the engine was planned for SUVs and light-duty pickup trucks. However, GM engineers have long pointed out that the dual overhead cam, four-valve diesel V-8 would fit in about the same space as a small-block gasoline V8. The Duramax has been specifically designed for “a wide variety of vehicle applications” including passenger cars.
The 4.5L Duramax delivers 310 horsepower and a whopping 520 foot pounds of torque! Featuring aluminum cylinder heads with integrated manifolding and a variable-vane turbocharger mounted in the vee, it’ll easily propel the Cadillac CTS in a manner expected by today’s luxury car buyers. The engine is legal in all 50 states – even with the tough 2010 emissions standards.
This V8 CTS model would fall between the CTS and CTS-V, performance and price-wise. It is said that the turbodiesel engine would provide an excellent replacement for the V8 “Ultra” which was cancelled earlier in the year. The performance would be comparable and gas mileage would be 20%-25% better. Thanks goes to Mercedes-Benz, BMW, and Audi for bringing 50-state-legal diesel cars to the U.S.