2009-2014 Nissan Maxima Brake Fluid Type and Flush Interval

By Core Brake Parts Tech Team — Circleville, OH warehouse

Every 2009-2014 Nissan Maxima (the A35 generation) takes DOT 3 brake fluid: the owner's manual calls for Genuine NISSAN Super Heavy Duty Brake Fluid or an equivalent DOT 3. How often to replace it depends on your model year and how you drive. Nissan's published schedule for the 2011-2013 Maxima says every 30,000 miles or 24 months under standard conditions and every 15,000 miles or 12 months under severe conditions. The 2014 schedule is tighter, at 20,000 miles or 24 months standard and 10,000 miles or 12 months severe.

What Brake Fluid the 2009-2014 Maxima Uses

The owner's manual is plain about it. When the level drops below the MIN line or the brake warning light comes on, you add Genuine NISSAN Super Heavy Duty Brake Fluid or an equivalent DOT 3 fluid up to the MAX line. The same spec shows up in the Capacities and Recommended Fuel/Lubricants table in the back of the book. The manual gives no brake fluid capacity. You don't need one: a flush pushes fluid through until clean fluid comes out of every bleeder, so buy more than the reservoir holds.

DOT 3 is a federal grade set by FMVSS 116 (49 CFR 571.116). It is a glycol-based fluid, and the standard sets minimum boiling points for each grade:

"Wet" boiling point is measured after the fluid has soaked up a set amount of water. That number matters more than the dry one because it describes fluid that has been in the car a couple of years. DOT 4 is a higher grade in the same glycol family, and fluid maker Torque Brake Fluid says DOT 3 mixes with DOT 4 and DOT 5.1 without harming the system. Nissan still specifies DOT 3, so DOT 3 is the no-questions choice. Never put DOT 5 silicone fluid in a Maxima. It does not mix with glycol fluid, and cross-contamination leaves you with a system that has to be fully flushed.

Flush Interval by Model Year

Nissan's online maintenance schedules don't give the same number for every year of this generation, so look up your exact year. Here is what Nissan publishes for the model years we could confirm:

For the 2009, Nissan's online schedule lists regular inspection of the brake fluid but no fixed replacement mileage. That doesn't mean the fluid lasts forever. It is the same DOT 3 in the same kind of system as the later cars, and it absorbs moisture at the same rate. A 2009 or 2010 that has never had a flush is now well over a decade old. We recommend treating those years like the 2011-2013 cars, and if you don't know when the fluid was last changed, flush it now.

Whichever interval applies, it's "whichever comes first." A Maxima that sits in a garage and covers 4,000 miles a year still hits the 24-month limit, because the fluid ages with time and humidity, not just miles.

Standard vs Severe: Which Schedule Is Yours?

Nissan's Service and Maintenance Guide for this era says to use the more severe schedule if you mostly drive under any of these conditions:

• Repeated short trips of less than 5 miles in normal temperatures, or less than 10 miles in freezing temperatures
• Stop-and-go traffic in hot weather, or low-speed driving over long distances
• Dusty conditions, or rough, muddy or salt-spread roads
• Towing a trailer, or using a camper or car-top carrier

The same guide says the less severe schedule generally applies only to highway driving in temperate conditions. Be honest here: a commuter in a city with hot summers or salted winter roads is on the severe schedule, which means a brake fluid change every year.

Why Old Fluid Matters and How to Spot It

Glycol brake fluid pulls moisture out of the air through hoses, seals and the reservoir cap. Torque Brake Fluid estimates DOT 3 absorbs roughly 1 to 2 percent moisture per year. As the water content rises, the boiling point falls toward the wet figure in the table above. On a long downhill or in a hard stop from highway speed, hot calipers can then boil the water in the fluid. Vapor compresses where liquid doesn't, so the pedal goes soft right when you need it most. Water also corrodes internal parts, including the ABS hydraulic unit, which uses brake fluid pressure to keep each wheel from locking.

Signs your Maxima is due or past due:

• You can't find a record of a brake fluid change within Nissan's interval for your year.
• The fluid in the translucent reservoir looks dark amber or brown instead of clear to light amber.
• The pedal feels spongy or sinks lower than it used to, especially after the brakes get hot.
• The low brake fluid warning light comes on with the parking brake released.

That last one needs attention right away. The manual says that if the light comes on while you're driving with the parking brake off, stop, check the fluid level and add fluid as needed. If the level is below the MIN mark, don't drive until the brake system has been checked. A low level usually means worn pads (the caliper pistons sit farther out and hold more fluid) or a leak. It doesn't mean the car simply "used" fluid. Topping up without finding out why hides the problem.

How to Check, Top Off and Flush

Check the level with every fuel fill or oil change. The reservoir sits on top of the master cylinder, and the level should be between the MIN and MAX lines. Before you open it, wipe the cap clean. Nissan's manual warns to use only new fluid from a sealed container, because old or contaminated fluid can damage the brake system. It also warns that brake fluid damages paint, so rinse any spill off with water right away. The federal labeling rule for brake fluid adds one more habit: store the fluid only in its original container, kept clean and tightly closed so it doesn't absorb moisture. A half-used bottle that has sat open on a shelf for a year is not "new fluid."

A full flush means pushing fresh DOT 3 through each caliper's bleeder until clean fluid comes out, while never letting the reservoir run dry. Working from the wheel farthest from the master cylinder to the nearest is the usual order, but follow the sequence in the factory service manual. Because the Maxima has ABS, running the reservoir dry can let air into the ABS unit, and clearing that may take a scan tool. With a helper and basic tools, a two-person pedal bleed is a reasonable DIY job for a careful owner. If the pedal is still soft after bleeding, stop and have the system inspected before you drive.

What to Replace at the Same Time

A fluid flush is the best time to look over the rest of the hydraulic system. The 2009-2014 Maxima has disc brakes at all four wheels, and the owner's manual describes a foot-pedal parking brake that works through parking brake shoes at the rear. While the wheels are off:

• Measure pad thickness. If you're close to the wear limit, do the pads now and bleed once. Shop brake pads or low-dust ceramic brake pads.
• Check rotors for scoring, lip wear and pulsation. See our brake rotors.
• Look at the rubber flex hoses at each wheel for cracks, bulges or wet spots. Replacements are in brake hoses.
• Clean and lube the caliper slide pins, and replace worn clips with a brake hardware kit.
• If a caliper leaks at the piston boot or a bleeder is seized, now is the time for brake calipers.

If you replace any hydraulic part, bleed the system completely afterward. It's usually worth making that bleed a full flush, since you already have the tools out.

Frequently Asked Questions

Can I use DOT 4 in my 2009-2014 Maxima?

Nissan specifies DOT 3. DOT 4 is in the same glycol family, mixes with DOT 3 and meets higher federal boiling-point minimums, so it's a common substitute. If you want to follow the book exactly, use DOT 3. Never use DOT 5 silicone.

How often should I flush the brake fluid on a 2012 Maxima?

Nissan's schedule for the 2012 Maxima says every 30,000 miles or 24 months under standard driving, and every 15,000 miles or 12 months under severe driving, whichever comes first.

Is the 2014 Maxima interval different?

Yes. Nissan's 2014 Maxima schedule lists 20,000 miles or 24 months for standard driving and 10,000 miles or 12 months for severe or premium maintenance.

How much brake fluid do I need for a flush?

The owner's manual doesn't list a brake system capacity. Buy more fresh, sealed DOT 3 than the reservoir holds so you can bleed every corner until clean fluid comes out without running low partway through.

My brake fluid light is on but the level looks fine. What now?

The manual says to have the warning system checked by a dealer if the level is correct and the light stays on with the parking brake released. If the brake and ABS lights are both on, the ABS may not be working, so have it inspected promptly.

Can I just top off instead of flushing?

Topping off restores the level but leaves the old, moisture-laden fluid in the calipers and lines. It doesn't reset the clock. If the car is past its interval, flush it.

Sources

1. 2012 Nissan Maxima Owner's Manual (Nissan USA) - DOT 3 fluid spec, top-off procedure, sealed-container and paint warnings, warning light guidance, parking brake type
2. Nissan USA: 2012 Maxima Brake Fluid Maintenance - 30,000 mi / 24 mo standard, 15,000 mi / 12 mo severe
3. Nissan USA: 2014 Maxima Brake Fluid Maintenance - 20,000 mi / 24 mo standard, 10,000 mi / 12 mo severe
4. Nissan USA: 2011 Maxima Brake Fluid Maintenance - 2011 interval
5. Nissan USA: 2013 Maxima Brake Fluid Maintenance - 2013 interval
6. Nissan USA: 2009 Maxima Brake Fluid Maintenance - 2009 lists inspection only
7. 2012 Nissan Service and Maintenance Guide - severe vs standard schedule definitions
8. 49 CFR 571.116, FMVSS 116 Motor Vehicle Brake Fluids (LII, Cornell Law) - DOT 3/4/5 boiling point minimums, container storage labeling
9. Torque Brake Fluid: The ABCs of Brake Fluid - moisture absorption rate, DOT 3/4 mixing, DOT 5 incompatibility