Holden Colorado RG Diesel Tuning & Servicing
The RG Colorado (2012-2020) runs the 2.8-litre Duramax turbo-diesel across the whole range — the LWH engine from launch in 2012 up to September 2013, then the updated LWN from September 2013 onward. Both respond very well to a proper tune. The MY17 facelift lifted the Duramax to 147kW and 500Nm in auto guise (440Nm manual), meeting Euro 5 with a 3500kg braked towing capacity.
We tune the RG’s Duramax in-house on the factory ECU, on our own dyno, developed for your exact truck rather than a generic off-the-shelf file.
The RG’s six-speed auto is known to shudder on torque-converter lock-up, and the DPF can choke on short urban trips. A proper tune is only half the story — a Colorado that’s serviced properly and watched closely is the one that stays out of limp mode and on the road.
Already know what you need? Browse our RG Colorado performance parts & upgrades. Got the older model? See our RC Colorado tuning & servicing page.
Holden Colorado RG diesel engines we tune
Why choose Willy’s for your Holden Colorado RG
Performance Tuning
Custom, dyno-verified ECU tuning developed in-house on the factory ECU for the RG Colorado’s Duramax diesel.
- Custom in-house tuning of the 2.8L Duramax across the whole RG run — the LWH (2012 to September 2013) and the later LWN (September 2013 on), including the 147kW/500Nm MY17 update — never a copied generic file.
- Dyno-verified before-and-after results developed for your specific truck, fuel and use.
- Focused on low-down and mid-range pulling power toward the 3500kg towing ceiling.
- Smoother throttle progression to help take the edge off the auto’s lock-up shudder feel.
Servicing & Repair
Servicing and repair built around the RG’s known auto and DPF issues.
- Diagnosis of the six-speed auto’s torque-converter lock-up shudder.
- DPF service for trucks doing mostly short urban trips, where regeneration cycles struggle to complete.
- Routine logbook servicing, cooling, turbo and driveline work on the RG platform.
- Straight advice matched to how your specific RG is actually driven.
Why drivers trust Willy’s Workshop
Holden Colorado RG diesel FAQs
What is a Holden Colorado RG?
RC or RG Colorado — which one do I have?
Why does my RG Colorado shudder when towing or at low speed?
Does the RG Colorado’s DPF cause problems?
What performance gains can I expect from an RG Colorado tune?
Book your Holden Colorado RG in
We tune and service across South-East Queensland — choose the workshop nearest you.
