Toyota Land Cruiser Dual Tank: Go Further, Worry Less

Prof. Selena Schaden 18 Jul 2025

For anyone who loves to get out there, way beyond where the pavement ends, the thought of running low on fuel can really bring on a bit of a chill. That, you know, is especially true when you're piloting a vehicle like the Toyota Land Cruiser, a true icon of off-road exploration. These amazing machines are built for adventure, but even they have limits on how far they can go before needing a drink. So, a lot of folks look for ways to push those boundaries, and that's where the idea of a Toyota Land Cruiser dual tank comes into play, offering a solution for those epic journeys that stretch beyond the usual gas station stops.

Imagine heading out to some truly remote spot, maybe a place where the closest town is hundreds of miles away, or where the terrain demands a lot from your engine. Your Land Cruiser is more than capable of handling the rough stuff, but its standard fuel capacity might just not be enough for the whole trip without some careful planning. That, in a way, can feel a little restrictive for the kind of freedom these vehicles are meant to give you. A second fuel tank, often called a dual tank or an auxiliary tank, can completely change that picture, making those far-flung destinations seem a whole lot closer and more achievable.

This idea of carrying more fuel isn't just about avoiding a quick stop at a pump; it's about the peace of mind that comes with knowing you have plenty of reserves for unexpected detours, for helping out a fellow traveler, or for simply extending your time in a beautiful, isolated location. It's about making your Land Cruiser even more capable, more independent, and ready for whatever the open road, or lack thereof, throws your way. You see, it's almost about transforming your vehicle into an even more self-sufficient exploration machine.

What's a Dual Fuel Tank for Your Land Cruiser?
- Why Consider More Fuel?
The Big Upsides of a Dual Tank System
Finding the Right Dual Tank for Your Land Cruiser
- Aftermarket Choices
- Matching Your Land Cruiser Model
Getting a Dual Tank Installed
Keeping Your Dual Tank in Good Shape
The Land Cruiser Community and Dual Tanks
- Sharing Experiences
- Why Land Cruiser Owners Love This
Frequently Asked Questions
Ready for More Miles?

What's a Dual Fuel Tank for Your Land Cruiser?

A Toyota Land Cruiser dual tank setup simply means adding a second fuel container to your vehicle, working alongside the one it came with from the factory. This second container is usually placed in a spot that doesn't take up too much useful space, often replacing the spare tire mount underneath or fitting into other unused areas of the chassis. It's almost like giving your vehicle a bigger, thirstier stomach, allowing it to hold a lot more liquid fuel for those long stretches, so you can just keep going.

These extra tanks are typically made from tough materials, like steel or aluminum, built to withstand the bumps and scrapes that come with off-road travel. They connect to your Land Cruiser's existing fuel system, usually with a pump and a switch that lets you move fuel from the auxiliary tank into your main tank as needed. This arrangement gives you a lot of control over your fuel supply, which is pretty handy when you are out in the wild, you know, far from any kind of regular service.

The goal is to increase your total fuel carrying ability significantly, sometimes doubling or even tripling your Land Cruiser's original range. This extra capacity means you can drive for much longer distances without having to pull over for fuel, which is a real game-changer for those who enjoy exploring remote parts of the country. It's quite a benefit, especially when you consider how much ground you can cover with that added peace of mind.

Why Consider More Fuel?

The main reason anyone thinks about adding more fuel capacity to their Land Cruiser is to extend its operational range. When you're planning a trip that takes you far from towns and cities, the distance you can travel on a single tank of fuel becomes a very important factor. Running out of fuel in the middle of nowhere is, well, something no one wants to experience, is that right?

For those who love overlanding, which involves self-reliant travel to remote destinations, extra fuel is often a necessity. These trips often involve long stretches of dirt roads or tracks where fuel stations are simply nonexistent. Having a Toyota Land Cruiser dual tank means you can push further into the wilderness, spend more time exploring, and worry less about whether you'll make it to the next fuel stop. It just gives you that much more freedom, you see, to truly wander.

Beyond just reaching distant places, having more fuel can also be a safety measure. Imagine getting stuck, or needing to idle for extended periods, or even having to assist another vehicle. All these situations can consume fuel unexpectedly. An auxiliary tank provides that extra buffer, giving you peace of mind that you have the resources to handle unforeseen circumstances. It's almost like having a secret reserve, just in case things don't go exactly as planned.

The Big Upsides of a Dual Tank System

Adding a second fuel tank to your Land Cruiser brings with it several really nice advantages, making your vehicle even more ready for big adventures. These advantages go beyond just carrying more liquid fuel; they touch on convenience, safety, and the overall experience of long-distance travel. You know, it's pretty neat how much of a difference it can make for your trips.

Going Further, Worry Less

The most obvious benefit of a Toyota Land Cruiser dual tank is the vastly increased range. Instead of, say, 400 miles on a tank, you might suddenly have 800 or even 1000 miles of travel capability. This means fewer stops, more continuous driving, and the ability to reach truly isolated areas without concern. It's a bit like having an endless road ahead, in a way, which is quite liberating for an explorer.

This extended range means you can plan your routes with much more flexibility. You don't have to detour to find fuel, which saves time and often allows you to stick to more scenic or challenging paths. For those who enjoy getting lost, in a good way, this extra range is practically a necessity. You can just keep going, which is a very good feeling when you're out there.

It also means you can avoid buying fuel at inflated prices in remote areas. Sometimes, the only gas station for hundreds of miles will charge a premium because they know you have no other choice. With a dual tank, you can fill up at a reasonable price before you head out, saving money in the long run. So, it's pretty smart, actually, to think about these things before you go.

Avoiding Fuel Stops in the Middle of Nowhere

Imagine driving through a beautiful, untouched landscape, with no signs of human activity for miles around. With a standard tank, you might be constantly checking your fuel gauge, thinking about the next town, or worrying about whether the one gas station marked on your map is even open. A Toyota Land Cruiser dual tank frees you from that constant low-level stress. You can simply enjoy the scenery and the journey, which is really what these trips are all about, isn't it?

This peace of mind is especially valuable when traveling with family or friends. There's no need to interrupt a beautiful moment to hunt for fuel, or to risk getting stranded in a place where help is hours or even days away. It allows for a more relaxed and enjoyable travel experience for everyone involved. You know, it just makes everything feel a little bit easier.

It also means you can be more selective about where you refuel. You can wait until you find a station with good quality fuel, rather than being forced to use whatever is available in a pinch. This can be important for the long-term health of your Land Cruiser's engine, as clean fuel is always a good idea. So, there's that too, which is a nice little bonus.

Carrying Less on the Roof

Before dual tanks became popular, many adventurers would carry extra fuel in jerry cans strapped to the roof rack or rear bumper. While this works, it adds weight high up on the vehicle, which can affect stability and handling, especially on uneven terrain. It also takes up valuable space that could be used for other gear. You know, it's not the most ideal setup, is it?

A Toyota Land Cruiser dual tank, typically mounted low on the chassis, helps keep the vehicle's center of gravity lower. This improves stability and makes the Land Cruiser feel more planted, particularly when navigating tricky off-road sections. It's a much better way to carry the extra weight, making your vehicle safer and more predictable to drive. It's quite a noticeable difference, you see, in how the vehicle feels.

By moving the fuel storage underneath, you free up roof rack space for lighter, bulkier items like tents, sleeping bags, or recovery gear. This makes packing easier and allows you to carry everything you need without compromising your vehicle's performance or safety. It's just a more efficient way to organize your load, which is pretty smart when you're packing for a big trip.

Finding the Right Dual Tank for Your Land Cruiser

When you start looking into adding a Toyota Land Cruiser dual tank, you'll find there are a few options and things to think about. It's not a one-size-fits-all kind of thing, as different Land Cruiser models and different travel needs will point you in different directions. You know, it's worth doing a bit of homework before you commit to anything.

Aftermarket Choices

Most dual tanks for Land Cruisers are aftermarket additions, meaning they are made by companies specializing in off-road accessories rather than by Toyota itself. These companies, like Long Range Automotive (LRA) or ARB, have designed tanks specifically to fit various Land Cruiser models, often utilizing unused space under the vehicle. They come in different capacities, so you can pick one that matches how far you want to go. So, there are quite a few good names out there, actually, that make these things.

These tanks are usually built very strong, using materials that can handle the rough and tumble of off-road conditions. They come with all the necessary parts for installation, including fuel lines, pumps, and switches. It's a pretty complete package, typically, designed to integrate smoothly with your Land Cruiser's existing fuel system. You know, they really think of everything for these setups.

When choosing, you'll want to consider the tank's capacity, its material, and how it will affect your vehicle's ground clearance. Some tanks might hang a little lower than others, which could be a concern if you do a lot of serious rock crawling. It's a bit of a balancing act, finding the right tank that gives you the range you need without getting in the way of your off-road adventures. So, you'll want to think about what kind of trails you usually drive.

Matching Your Land Cruiser Model

It's very important to pick a dual tank that is made for your specific Land Cruiser generation. A tank designed for a 200 Series Land Cruiser, for example, won't fit an 80 Series or a 70 Series. Each generation has different chassis layouts and available space underneath, so the tanks are shaped to fit those unique dimensions. You know, it's not like a universal part, by any means.

If you're unsure which tank is right for your Land Cruiser, it's a good idea to check with suppliers who specialize in these kinds of modifications. They can guide you to the correct product for your vehicle, ensuring a proper fit and function. The Land Cruiser community, like the forum community dedicated to Toyota FJ owners and enthusiasts, is also a fantastic resource for this kind of information. People there often share their experiences with specific tanks on different models, which is pretty helpful, actually, when you're trying to figure things out.

For example, owners of the older Land Cruisers, which often share a spirit with the FJ, might discuss how their "reliable gas hungry V6" engines benefit from the extra fuel capacity on long trips, especially compared to speculation about newer, potentially less thirsty engines. It's all about making sure your vehicle, whatever its vintage, is truly ready for the long haul. So, getting the right fit is a big part of making it all work out well.

Getting a Dual Tank Installed

Once you've picked out your Toyota Land Cruiser dual tank, the next step is getting it put into your vehicle. This can be a bit of a project, and how you approach it often depends on your comfort level with vehicle modifications and the tools you have available. You know, it's not something you just slap on in five minutes.

Is It a DIY Job?

For someone with good mechanical skills, a well-equipped garage, and plenty of patience, installing a dual tank can be a do-it-yourself project. Most aftermarket kits come with detailed instructions and all the parts you need. It involves working with fuel lines, electrical connections for pumps and gauges, and sometimes modifying exhaust systems or spare tire mounts. It's a bit more involved than, say, changing an air filter, which, based on Toyota's maintenance recommendations, is a pretty straightforward task. So, you really need to know what you're doing, actually.

However, it's important to be honest with yourself about your abilities. Working with fuel systems carries risks, and any mistakes could lead to leaks or other problems. There's also the weight of the tank itself, especially when it's full, which needs to be supported properly. It's not a job to rush through, and you really want to get it right the first time. You know, safety is pretty important when you're dealing with fuel.

Many Land Cruiser owners, especially those who spend time on forums discussing "performance, accessories, mods, troubleshooting, maintenance, and more!", share their DIY installation stories and tips. This kind of community knowledge can be incredibly valuable if you decide to tackle the job yourself. So, you might find a lot of help just by asking around online.

When to Get Help

For many, having a professional install the Toyota Land Cruiser dual tank is the smarter choice. Shops that specialize in off-road vehicle modifications or custom fabrication have the experience, specialized tools, and knowledge to do the job safely and correctly. They can ensure all connections are secure, the wiring is done right, and the tank is properly mounted to withstand the rigors of off-road travel. It's often worth the cost for the peace of mind, you see, knowing it's done right.

A professional installation can also help avoid potential issues down the road, like fuel transfer problems or even structural concerns if the tank isn't mounted securely. They understand the nuances of working with different Land Cruiser models and can anticipate any challenges that might arise during the process. It's pretty much a guarantee that the work will be done to a high standard, which is something you really want for something as important as your fuel system.

Even if you're handy, some aspects, like custom exhaust routing or complex electrical integration, might be best left to experts. For instance, getting the fuel gauge to read correctly with two tanks can sometimes be a bit tricky. So, there are definitely times when calling in the pros just makes a whole lot of sense, actually.

What Changes After Installation?

Once your Toyota Land Cruiser dual tank is in place, you'll notice a few things. The most obvious is the extra fuel gauge or a switch that lets you monitor and transfer fuel between tanks. You'll also feel the added weight, especially when both tanks are full. This extra weight, typically low down, can actually improve stability on the road, but it will also affect your suspension. You know, it's something to get used to, the different feel of the vehicle.

It's a good idea to consider upgrading your suspension if you plan to regularly carry a full dual tank, along with other gear. Heavier springs or a full suspension lift can help manage the extra load and maintain your Land Cruiser's ride height and handling characteristics. This is a common modification discussed in communities where owners talk about "performance, accessories, mods," and keeping their vehicles ready for anything. So, it's pretty much part of the whole package for many folks.

You might also notice a slight change in your Land Cruiser's departure angle if the tank hangs lower than the original spare tire. This is something to be aware of when tackling steep obstacles off-road. However, for most overland travel, the benefits of the extended range far outweigh these minor considerations. It's a small trade-off, you see, for a lot more freedom.

Keeping Your Dual Tank in Good Shape

Just like any part of your Land Cruiser, a Toyota Land Cruiser dual tank system needs a bit of care to keep it working well for years of adventures. Regular attention to its components will help ensure it's always ready when you need that extra fuel. You know, a little bit of looking after goes a long way with these things.

Regular Checks

Periodically, it's a good idea to visually inspect your dual tank and its connections. Look for any signs of leaks, especially around the fittings and hoses. Check the mounting straps and brackets to make sure they are still secure and haven't come loose from vibrations or impacts. You know, it's pretty simple to just take a look underneath every now and then.

Also, pay attention to the fuel transfer pump and any associated wiring. Make sure there are no frayed wires or loose connections. If you have an auxiliary fuel filter, remember to change it as recommended by the manufacturer. These small checks can prevent bigger problems down the road, which is pretty important when you're relying on your fuel system. So, it's a bit like doing a quick health check for your tank.

If you notice any unusual smells of fuel, or if the transfer system isn't working as smoothly as it should, address it right away. Ignoring small issues can lead to bigger, more costly repairs later on. It's just smart to stay on top of things, you see, especially with something that holds a lot of fuel.

Fuel Quality Matters

Always try to fill your tanks with good quality fuel. While Land Cruisers are known for their ability to handle various conditions, clean fuel is always best for the longevity of your engine and fuel system components. If you're in a remote area and the fuel quality seems questionable, it might be worth using a portable fuel filter funnel to catch any sediment or water before it enters your tank. You know, it's a small extra step that can make a big difference.

Storing fuel in your auxiliary tank for very long periods without using it can sometimes lead to issues, especially with modern fuels that contain ethanol. Ethanol can attract water and degrade over time, potentially causing problems for your fuel system. It's generally better to cycle the fuel through your tanks, using it up and refilling regularly, rather than letting it sit for months on end. So, it's pretty much a good idea to keep things moving, actually.

If you do plan to store your Land Cruiser for an extended period with a full dual tank, consider adding a fuel stabilizer to prevent degradation. This can help keep your fuel fresh and ready for your next adventure, whenever that might be. It's a simple little trick, you see, to protect your investment.

Thinking About the Land Cruiser's Heart

The Land Cruiser's engine is a big part of its legendary reliability. For many years, the "reliable gas hungry V6" engine was a staple, known for its ability to just keep going, even if it did like to drink a bit of fuel. This kind of engine, with its thirst, makes a Toyota Land Cruiser dual tank an even more appealing addition for those long journeys. You know, it just makes sense to have that extra capacity.

There's a lot of talk, especially in forum communities, about the future of Land Cruiser engines, with speculation about "an FJ EV, or Land Cruiser FJ, or 3.5L FJ hybrid." While these newer, potentially more fuel-efficient options might change the *need* for a dual tank in the future, for many existing Land Cruiser owners, especially those with the older, proven powertrains, the dual tank remains a very practical upgrade. It's almost like ensuring your current setup is as capable as it can be, for today's adventures.

Even if Toyota were to bring back a version of the FJ, the community often notes they would "never ever put back in the reliable gas hungry V6," perhaps opting for "the current pos turbo four banger." This kind of discussion highlights why current owners value their existing engines and the modifications, like dual tanks, that enhance their capabilities for the long haul. So, it's a big part of the conversation for a lot of people, actually.

The Land Cruiser Community and Dual Tanks

The Land Cruiser community is a passionate group, and the topic of a Toyota Land Cruiser dual tank often comes up in discussions about preparing vehicles for serious travel. It's a place where owners share their experiences, offer advice, and celebrate the capabilities of these amazing machines. You know, it's pretty cool how much knowledge is shared among these folks.

Online forums and local chapters, like the "Arizona chapter of the Toyota FJ Cruiser forum," are hubs for sharing information about modifications like dual tanks. You can find detailed build threads, reviews of different tank manufacturers, and troubleshooting tips from people who have actually installed and used these systems in the real world. This collective experience is invaluable for anyone considering the upgrade. So, it's a great place to learn, actually, from others who have been there.

These communities often discuss everything from "performance, accessories, mods, troubleshooting, maintenance, and more!" They'll talk about the pros and cons of various setups, the challenges they faced during installation, and how the dual tank has changed their travel habits. It's a very practical kind of discussion, focused on real-world use. You know, it's not just theory, it's what people are actually doing with their vehicles.

It's also a place where you can get honest opinions about different products and learn from others' mistakes. For instance, if someone tried some aftermarket blade assemblies and wished they hadn't thrown away their OEM ones, they'd share that. Similarly, they'd share insights about dual tanks, making your decision-making process much easier. So, it's pretty much a goldmine of practical advice, you see.

Why Land Cruiser Owners Love This

Land Cruiser owners, much like FJ owners, have a deep appreciation for reliability and self-sufficiency. The Land Cruiser is often seen as a tool for adventure, a vehicle that can take you anywhere and bring you back. A Toyota Land Cruiser dual tank aligns perfectly with this philosophy, extending the vehicle's inherent capability. It's almost like giving an already amazing tool an even sharper edge, for those really far-out jobs.

The ability to carry more fuel

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Toyota Land Cruiser Dual Tank: Go Further, Worry Less

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