• Nissan Patrol GU – ZD30-DDTi 3.0L 4-Cylinder Turbo Diesel | 2006–2018

⚠️ Important Fitment Note: Not suitable for Ti models with ABS — brake and fuel lines may obstruct fitment. Please verify your specific model configuration before ordering.

How It Works: Installed between the fuel tank and factory filter, the PreLine-Plus removes water and particles, protecting your injectors and pumps from contamination. The multi-stage water alert system provides in-cab audible and visual alarms when water is detected.

Key Features:

• 100% water separation efficiency
• Multi-stage water alert system — in-cab audible and visual alarm
• Superior particle filtration before OEM filter
• Spin-on filter for quick, easy servicing
• Long service life — meets OEM injector system specs
• No bypass system — contaminants never reach your engine
• Protects against corrosion and abrasive wear
• Prevents injector and pump damage

💡 Why This Matters: The ZD30 engine is notoriously sensitive to water contamination. With injector repair costs often exceeding $10,000, the PreLine-Plus with integrated water alarm provides superior protection and automatic alerts—keeping your Patrol's engine safe from costly fuel system damage.

How It Works: The ProVent prevents oil and carbon build-up, keeping your intake and turbo clean. Separates oil mist and blow-by gases before they enter your intake system, maintaining strong engine performance over time.

Key Features:

• ~98% oil separation efficiency
• Prevents oil and soot entering clean air intake
• Protects turbocharger, EGR, and intake system
• Keeps intercooler and intake manifold clean
• Prevents carbon build-up — keeps engine performance strong
• Regulates crankcase pressure
• Minimizes oil consumption
• Reduces exhaust smoke and odours
• Flexible install — option to redirect oil back to sump

💡 Why This Matters: Oil vapour causes carbon deposits that restrict airflow and reduce power over time. The ProVent keeps your ZD30's intake system clean, protecting vital components and maintaining optimal performance—especially critical for an engine known for its power and reliability when properly maintained.

PreLine-Plus Pre-Filter System:

• Water Separation: 100% efficiency
• Filter Type: Spin-on replaceable element
• Multi-stage water alert: In-cab audible and visual alarm
• Long service life — meets OEM injector system specifications
• No bypass valve — full filtration always active
• Designed for ZD30 fuel system specifications

ProVent Ultimate Catch Can:

• Oil Separation: ~98% efficiency
• Filter: MANN+HUMMEL media
• Drain tap for oil collection
• Optional return line to sump for flexible installation
• Engineered specifically for ZD30 crankcase system

PreLine-Plus Pre-Filter Kit:

• PreLine-Plus pre-filter assembly with spin-on filter
• Multi-stage in-cab water alarm module (audible + visual)
• Patrol GU ZD30-specific mounting bracket
• Complete fuel line and fitting kit
• Wiring harness for alarm installation
• Hose clamps and connectors
• Mounting hardware
• Installation guide

ProVent Ultimate Catch Can Kit:

• MANN+HUMMEL ProVent catch can
• Patrol GU ZD30-specific mounting bracket
• Complete hose and fitting kit
• Drain tap assembly with hose
• Optional sump return line components
• Mounting hardware (bolts, washers, nuts)
• Spring clamps and cable ties
• Installation guide

Recommended: Competent qualified mechanic

Combined DIY Time: 4–5 hours (both systems)

PreLine-Plus Installation:

• Mounts in engine bay between fuel tank and OEM filter
• Uses ZD30-specific mounting bracket
• Water alarm module mounts in cab (dashboard or A-pillar)
• Wiring connects to cabin for audible/visual alerts
• Spin-on filter design for easy maintenance
• Check clearances if Ti model with ABS

ProVent Installation:

• Mounts in engine bay
• Connects to crankcase ventilation system
• Drain tap routed for easy access
• Optional return line to sump can be configured
• All hoses and fittings included

⚠️ Important: Ti models with ABS may have fitment issues due to brake and fuel line routing. Verify clearances before installation. Both systems can be installed separately or together.

PreLine-Plus Pre-Filter:

• Water alarm will alert you automatically when water is detected
• Drain water when alarm sounds (simple drain procedure)
• Replace spin-on filter element per vehicle service schedule
• No manual checking required — alarm does the monitoring
• Fast filter changes thanks to spin-on design

ProVent Catch Can:

• Check oil level every 5,000–10,000 km
• Drain collected oil via drain tap when needed
• If using sump return line, oil automatically recirculates
• Replace filter element every 40,000 km (replacement elements available)

💡 Pro Tip: The integrated water alarm eliminates guesswork—when it sounds, simply drain the water in minutes. The spin-on filter design makes replacements quick and easy. Keep your ZD30 protected with minimal maintenance effort.

Q: Will this void my Nissan warranty?

A: No. Aftermarket protection devices don't void warranty under Australian Consumer Law. These systems protect your engine without interfering with factory components.

Q: Why isn't this compatible with Ti models with ABS?

A: Some Ti models with ABS have brake and fuel line routing that may obstruct the PreLine-Plus mounting location. We recommend verifying clearances or consulting with your installer before ordering if you have a Ti model with ABS.

Q: Is the water alarm included or sold separately?

A: The multi-stage in-cab water alarm is included with this kit! It provides both audible and visual alerts when water is detected—no need to manually check the filter.

Q: How does the PreLine-Plus differ from the Fuel Manager?

A: The PreLine-Plus offers superior 100% water separation efficiency (vs 95%) and comes with an integrated water alarm system. It also features a convenient spin-on filter design for faster maintenance.

Q: Why is the ZD30 particularly vulnerable to water contamination?

A: The ZD30 common rail injection system operates at extremely high pressures with tight tolerances. Even small amounts of water can cause catastrophic injector failure. The ZD30 has a reputation for being sensitive to fuel quality, making a pre-filter essential protection.

Q: How often do I need to drain water?

A: The water alarm will alert you automatically when water is detected. Simply drain when the alarm sounds—no scheduled checking required. Frequency depends on fuel quality, especially when fueling at remote stations.

Q: Can I install these systems myself?

A: If you're mechanically competent and comfortable working with fuel lines and basic wiring, yes. Most DIYers complete installation in 4-5 hours. Otherwise, any qualified mechanic can handle it. Detailed installation guides are included.

Q: Do I need both systems or can I buy them separately?

A: You can buy either system separately, but the combo kit offers better value and comprehensive protection. The PreLine-Plus protects your fuel system, while the ProVent protects your intake system—together they provide complete engine protection.

Q: Does the ProVent return oil to the sump automatically?

A: The kit includes components for an optional sump return line. You can configure it to either: (a) collect oil in the catch can for periodic draining, or (b) return clean oil back to the sump automatically. Flexible installation based on your preference.

Q: Will this help with the ZD30's known issues?

A: While no aftermarket product can prevent all potential issues, this dual protection system addresses two major ZD30 vulnerabilities: fuel contamination (which can kill injectors) and carbon build-up (which affects performance and reliability). Many ZD30 owners consider this essential protection.

Q: Is this suitable for touring and remote travel?

A: Absolutely essential for touring. Remote fuel stations often have variable fuel quality, making the PreLine-Plus with water alarm critical protection. The ProVent keeps your intake clean during extended trips under load. This kit is built to defend your engine in harsh conditions.

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