Cadillac GM 3.6L V6 (High Feature)

Cadillac GM 3.6L V6 (High Feature) — every model and year that used this engine (12 models, 2004–present), based on NHTSA VIN build data, with links to prices and reliability.

CTS, ATS, SRX, XT5.

3.6L · 6 cylinders · seen in 12 models, 2004–2026

By the numbers

Gasoline: 100%. Based on 613 decoded NHTSA VIN build sheets.

About this engine family

The GM High Feature engine is a family of modern DOHC V6 engines produced by General Motors. The series was introduced in 2004 with the Cadillac CTS and the Holden VZ Commodore.

In detail

The HFV6 was designed, tested, and produced in a joint program by Holden and Cadillac. A majority of designs into the new alloy construction, transmission pairing, and first use in production were all undertaken in Detroit (and manufactured in St. Catharines, Ontario). Holden was charged with developing smaller engines (Holden 3.2 LP1 and Saab 2.8 Turbo LP9) as well as their own Holden 3.6 and 3.0 HFV6 (called the Alloytec V6) for local models.

Cadillac and Holden both tested variations of these engines in the United States and Australia. A LP1 variant was introduced in the 2005 Cadillac CTS. It was also used on the Chinese 2008 CTS. It has a bore and stroke, sequential multi-port fuel injection and a 10.0:1 compression ratio. The LP1 was built in St. Catharines, Ontario. This engine is also known as a A28NET, Z28NET, Z28NEL or B284. The LP9 is a 2.8L turbocharged version used for the Saab 9-3, Saab 9-5, and other GM vehicles.

It has the same bore and stroke as the naturally aspirated LP1, however the compression ratio is reduced to 9.5:1. The engine is manufactured at Holden's Fishermans Bend engine factory in Port Melbourne, Australia, while GM Powertrain Sweden (formerly Saab Automobile Powertrain) is responsible for turbocharging the engine. Global versions of this engine use the same horsepower rating for both metric and imperial markets – mechanical horsepower – while the Europe-only versions are rated in metric horsepower.

The LAU is GM's new code for the LP9 Turbo engine, its usage starting with the 2010 Cadillac SRX. In 2011, production of the Cadillac SRX with the LAU engine ceased, but the engine remained in use in the Saab 9-4X until 2012, when production of that model came to an end. The LF1 is a version with a bore and stroke of produced between 2010 and 2014, equipped with spark ignition direct injection (SIDI) and a 11.7:1 compression ratio.

The LFW is a flexible fuel version of the LF1, capable of running on E85, gasoline, or any mixture of the two. Output is identical to the LF1. Holden has built its own version of the High Feature engine in Australia produced between 2005 and 2010 with a bore and stroke of . Branded with the Alloytec name like the 3.6L version, this version produces at 6600 rpm and at 3200 rpm. It has a 10.3:1 compression ratio. Its fuel economy is in city, and on highway..

Holden also produced the 3.2L engines that were used by Alfa Romeo as the basis of its JTS V6 engine. Applications: 2006-2010 Daewoo Winstorm / Chevrolet Captiva / Holden Captiva 2006-2010 Opel Antara / Daewoo Winstorm MaXX / Holden Captiva MaXX 2008-2012 Suzuki Grand Vitara The LY7 engine was developed primarily by Holden and introduced in the 2004 Holden VZ Commodore and 2004 Cadillac CTS sedan. It has a 10.2:1 compression ratio, sequential multi-port fuel injection, and a bore and stroke of .

Lower-powered versions only have variable cam phasing on the inlet cam (LE0). Selected models also include variable exhaust. The engine weighs as installed. This engine was produced in several locations: St. Catharines (Ontario), Flint Engine South (Michigan), Melbourne (Australia), Ramos Arizpe (Mexico), and Sagara (Japan) by Suzuki. The dual-fuel LW2 version was able to run on petrol and autogas. The LW2 engine was based on the low-output LE0 V6.

It featured a factory-fitted dual-fuel system developed by IMPCO, different valves, and hardened titanium valve seats. This motor was available exclusively in Holden vehicles from 2005–2012. The LLT is a direct injected version based on the earlier LY7 engine. It was first unveiled in May 2006, and the DI version was claimed to have 15% greater power, 8% greater torque, and 3% better fuel economy than its port-injected counterpart.

The LLT engine has a compression ratio of 11.3:1, and has been certified by the SAE to produce at 6300 rpm and of torque at 5200 rpm on regular unleaded (87 octane) gasoline. This engine debuted on the 2008 Cadillac STS and CTS.

Source: Wikipedia — GM High Feature engine, CC BY-SA.

Models that used this engine

Model Years with this engine Fuel VIN builds seen
CTS 2004–2019 Gasoline 167
ATS 2013–2019 Gasoline 108
XTS 2013–2019 Gasoline 104
XT5 2017–2026 Gasoline 65
SRX 2004–2016 Gasoline 62
XT6 2020–2025 Gasoline 44
CT6 2016–2020 Gasoline 20
STS 2005–2011 Gasoline 18

Engine usage derived from NHTSA VIN build data (displacement + cylinder configuration). Model links lead to prices, generations and reliability.

For sale with this engine