When to Use 4H vs 4L: The Complete Guide for Australian 4WD Owners

If you're new to 4WDing, one of the first questions you'll ask is, "When do I use 4H and when do I use 4L?"

Understanding the difference between these four-wheel drive modes will help you drive more safely, improve traction and reduce unnecessary wear on your vehicle.

Whether you're exploring K'gari, tackling the Glass House Mountains, touring Cape York or heading down your local bush tracks, knowing when to use the right mode makes every trip easier and more enjoyable.

This guide explains what 4H and 4L do, when to use them and how they help your 4WD perform in different conditions.

What Is 4H (4 High)?

4H, also known as Four High, engages all four wheels while allowing you to drive at moderate speeds.

It is designed for situations where you need extra traction but still want to maintain normal driving speeds.

Best suited for:

• Gravel roads

• Corrugated tracks

• Wet grass

• Dirt roads

• Light mud

• Beach driving

• Loose surfaces

• Snow or icy roads (where applicable)

In 4H, power is delivered to both the front and rear wheels, helping your tyres maintain grip when the surface becomes slippery or uneven.

For many off-road trips, 4H is the mode you'll use most often.

What Is 4L (4 Low)?

4L, or Four Low, uses a lower gear ratio through the transfer case to provide significantly more torque at lower speeds.

Instead of allowing the vehicle to travel quickly, 4L gives you greater control and more precise throttle response.

This makes it ideal when the terrain becomes steep, rocky or technically challenging.

Best suited for:

• Steep climbs

• Steep descents

• Rock crawling

• Deep mud

• Soft sand

• Deep ruts

• Creek crossings

• Vehicle recoveries

• Towing over difficult terrain

Because the vehicle travels much slower in 4L, it's easier to control wheel placement and reduce unnecessary wheel spin.

4H vs 4L Comparison

Driving Situation	2H	4H	4L
Sealed roads	✅	❌	❌
Wet roads	⚠️*	✅**	❌
Gravel roads	⚠️	✅	❌
Corrugations	⚠️	✅	❌
Beach driving	❌	✅	Sometimes
Light mud	❌	✅	Sometimes
Deep mud	❌	Sometimes	✅
Rock crawling	❌	❌	✅
Steep climbs	❌	Sometimes	✅
Steep descents	❌	❌	✅
Vehicle recovery	❌	❌	✅

* If your vehicle is two wheel drive only.
** Only if your vehicle manufacturer recommends using 4H on that surface.

When Should You Use 4H?

4H is ideal when you need more grip but still want to keep moving at a reasonable speed.

Examples include:

Gravel Roads

Loose gravel reduces tyre grip.

Selecting 4H helps improve traction and vehicle stability.

Corrugated Tracks

Corrugations constantly unsettle the suspension.

Using 4H helps distribute power more evenly across all four wheels, improving confidence on rough roads.

Beach Driving

Most beach driving is done in 4H with reduced tyre pressures.

If the sand becomes extremely soft or you're climbing steep dunes, 4L may provide better control.

Light Mud

Shallow muddy sections are often handled easily in 4H.

If momentum alone isn't enough, it may be time to select 4L.

When Should You Use 4L?

4L is all about slow, controlled driving.

Rock Crawling

Driving over rocks requires careful wheel placement.

4L provides the low-speed control needed to navigate obstacles safely.

Steep Hills

Whether climbing or descending, 4L gives you better control while reducing strain on your brakes and transmission.

Deep Sand

If your vehicle begins struggling in very soft sand, selecting 4L can help deliver smoother power without excessive wheel spin.

Vehicle Recovery

Recovering a bogged vehicle often requires maximum control and torque.

4L is the preferred choice for many recovery situations.

How to Shift Into 4H and 4L

Every vehicle is different.

Some allow you to shift into 4H while moving at low speeds.

Others require you to stop.

Many vehicles require the transmission to be placed in Neutral before selecting 4L.

Always follow the procedure outlined in your owner's manual to avoid damaging the drivetrain.

Common Mistakes New 4WD Owners Make

Using 4L Too Early

Many beginners select 4L before it's needed.

In many situations, 4H provides more than enough traction.

Driving Too Fast in 4L

4L is designed for slow, controlled driving.

Driving at higher speeds in 4L places unnecessary stress on your vehicle.

Using 4WD on High-Traction Surfaces

Driving in 4H or 4L on dry sealed roads can cause drivetrain wind-up in many part time four wheel drive systems.

Only engage four wheel drive when the driving surface allows the tyres to slip slightly.

Passenger Comfort Matters Too

When you're driving steep tracks, rocky climbs or long corrugated roads, passengers naturally reach for something to hold onto.

Factory grab handles do the job, but many 4WD owners upgrade to hand-braided paracord grab handles for added comfort and a more secure grip.

At Krawlergrips, every grab handle is hand braided in Brisbane using quality Type III 550 nylon paracord and made to order in your chosen colour combination.

They're designed to improve comfort while adding a personalised touch to your 4WD interior.

Frequently Asked Questions

Can I drive on the highway in 4H?

Most part time 4WD systems should not be driven in 4H on dry sealed roads because it can cause drivetrain wind-up. Always follow your manufacturer's recommendations.

Is 4L more powerful than 4H?

4L doesn't increase engine power. It uses a lower gear ratio to provide more torque and better low speed control.

Should I use 4L on the beach?

Usually, 4H is sufficient for beach driving. If the sand is extremely soft or you're climbing steep dunes, 4L may provide better control.

Can I use 4L for towing?

Many drivers use 4L when towing trailers or caravans over steep or difficult terrain where extra control is needed.

Does every 4WD work the same way?

No. The method for engaging 4H and 4L varies between manufacturers and models. Always refer to your owner's manual.

Drive with Confidence

Learning when to use 4H and 4L is one of the most valuable skills for any new 4WD owner.

Choosing the correct mode improves traction, increases vehicle control and helps you tackle Australia's diverse tracks with greater confidence.

Whether you're planning your first beach trip or your next outback adventure, understanding your four-wheel drive system is just as important as carrying the right recovery gear.

If you're upgrading your touring setup, explore the Krawlergrips range of Australian made paracord grab handles and accessories, handcrafted in Brisbane and built for life off the beaten track.