Ute
Overview
The VU (2000-2002) launched the modern Commodore ute on the long-wheelbase platform; the VY (2002-2004) refreshed the styling and electrics; the VZ (2004-2007) brought the all-new Alloytec V6 and, late in the run, the 6.0L Gen IV V8. The body line-up grew from the single-cab ute to the One Tonner cab-chassis and the Crewman dual-cab from 2003, plus the AWD Crewman Cross 6/Cross 8 (2004-2006). Engine choice drives everything here. The old pushrod Ecotec 3.8 V6 (VU/VY) is simple and cheap but suffers the well-known plastic intake-manifold gasket failure. The Gen III 5.7 LS1 V8 is the hero engine - strong and tuneable - but early (pre-VY II) blocks are known for cold-start piston slap. The VZ's Alloytec 3.6 V6 is more powerful and modern but carries a poor reputation for early timing-chain stretch, oil consumption and an undersized PCV system. The brief VZ 6.0 L98 V8 is the pick of the petrols. These are car-based utes, not 4WDs (the Cross AWD aside), so tow ratings are modest - typically 1600kg, up to 2100kg (V6 auto Crewman/One Tonner) and 2500kg (V8 auto Crewman/One Tonner). Rust, tired suspension and ageing electrics are now the main condition concerns.
Engines & variants
3.8L Ecotec V6 (L36)
Pros
- Simple, cheap, mechanically tough pushrod six
- Cheapest VU/VY ute to buy and run
- Huge parts availability and easy DIY
- Gear-driven timing - nothing to snap
Cons
- Plastic lower intake-manifold gaskets are a known failure point
- Modest power and tow rating for the size
- Less desirable than the V8 - lower resale
- Coarse and thirsty for its output by modern standards
Known problems
5.7L Gen III V8 (LS1)
Pros
- Strong, characterful and hugely tuneable alloy V8
- Robust chain-driven timing and bottom end
- Massive aftermarket and parts support
- The hero engine - best driving experience and best resale
- Available in the AWD Crewman Cross 8
Cons
- Early (pre-VY II) blocks known for cold-start piston slap
- Thirsty - 14-16+ L/100km
- Lifter tick is common with age
- SS/V8 examples often modified or hard-driven - check history
Known problems
3.6L Alloytec V6 (LY7)
Pros
- Much more power and a modern DOHC feel than the old Ecotec
- Smoother and quieter than the pushrod six
- Available with the AWD Crewman Cross 6
- Plentiful and affordable used
Cons
- Early timing chains prone to stretch (rattle on start, chain-related faults)
- Undersized factory PCV can drive oil consumption / sludging
- Complex quad-cam design - dearer to repair than the Ecotec
- Very sensitive to oil quality and on-time servicing
Known problems
6.0L Gen IV V8 (L98)
Pros
- The pick of the petrols - strong, torquey and refined
- Larger, later-design block free of the early LS1 piston-slap reputation
- Excellent tuning potential and aftermarket support
- Best-performing and most sought-after VZ ute
Cons
- Thirsty big V8
- Only available very late in the VZ run - fewer examples
- Premium pricing for clean cars
- Often modified - check history
Known problems