coolant reservoir MAZDA MODEL MX-5 MIATA RF 2021 Owners Manual

Engine Compartment Overview
Windshield washer fluid reservoirBrake/Clutch fluid reservoir
Engine oil dipstick
Battery
Fuse blockCooling system cap
Engine coolant reservoir
Engine oil-filler cap
Maintenance and Care
Owner Maintenance
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Engine Coolant
▼Inspecting Coolant Level
WA R N I N G
Do not use a match or live flame in the
engine compartment. DO NOT ADD
COOLANT WHEN THE ENGINE IS HOT:
A hot engine is dangerous. If the engine has
been running, parts of the engine
compartment can become very hot. You
could be burned. Carefully inspect the
engine coolant in the coolant reservoir, but
do not open it.
Pull over to a safe location, then switch
the ignition off and make sure the fan is
not running before attempting to work
near the cooling fan:
Working near the cooling fan when it is
running is dangerous. The fan could
continue running indefinitely even if the
engine has stopped and the engine
compartment temperature is high. You
could be hit by the fan and seriously
injured.
Do not remove either cooling
system cap when the engine and radiator
are hot:
When the engine and radiator are hot,
scalding coolant and steam may shoot out
under pressure and cause serious injury.
NOTE
Changing the coolant should be done by
an Authorized Mazda Dealer.
Inspect the antifreeze protection and
coolant level in the coolant reservoir at
least once a year―at the beginning of the
winter season―and before traveling where
temperatures may drop below freezing.

Inspect the condition and connections of
all cooling system and heater hoses.
Replace any that are swollen or
deteriorated.

The coolant should be at full in the
radiator and between the FULL and LOW
marks on the coolant reservoir when the
engine is cool.

Coolant reservoir
Cooling fan
Cooling system cap
If it is at or near LOW, add enough coolant
to the coolant reservoir to provide freezing
and corrosion protec tion and to bring the
level to FULL.
Securely tighten the c oolant reservoir tank
cap after adding coolant.
Maintenance and Care
Owner Maintenance
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CAUTION
Radiator coolant will damage paint.
Rinse it off quickly if spilled.
 If the “FL22” mark is shown on or near
the cooling system cap, use of FL-22 is
recommended when replacing engine
coolant. Using engine coolant other than
FL-22 may cause serious damage to the
engine and cooling system.

If the coolant reservoir is empty or new
coolant is required frequently, consult an
Authorized Mazda Dealer.
Brake/Clutch Fluid
▼ Inspecting Brake/Clutch Fluid Level
WA R N I N G
If the brake/clutch fluid level is low, have
the brakes inspected:
A low brake/clutch
fluid level is dangerous.
A low level could indicate brake lining wear
or a brake system leak which could cause
the brakes to fail and lead to an accident.
The brakes and clutch draw fluid from the
same reservoir.
Inspect the fluid level in the reservoir
regularly. It should be kept between the
MAX and MIN lines.
The level norm ally drops with
accumulated distance, a condition
associated with wear of brake and clutch
linings. If it is excessively low, have the
brake/clutch system inspected by an
Authorized Mazda Dealer.
Maintenance and Care
Owner Maintenance
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6. Make sure the cooling fan is operating,then turn off the engine after the
temperature has decreased.
7. When cool, check the coolant level. If it is low, look for coolant leaks from
the radiator and hoses.

If you find a leak or other damage, or if
coolant is still leaking:
Stop the engine and call an Authorized
Mazda Dealer.
Coolant reservoir
Cooling fan
Cooling system cap
If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required (page
6-22).
CAUTION
If the engine continues to overheat or
frequently overheats, have the cooling
system inspected. The engine could be
seriously damaged unless repairs are
made. Consult an Authorized Mazda
Dealer.
If Trouble Arises
Overheating
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▼Lubricant Quality
Lubricant
Classification
Engine oil Refer to Recommended Oil on page 6-20.
Coolant FL-22 type
Manual transmission oil Mazda Original Long Life Gear Oil IS
*1
Automatic transmission fluid*2Mazda Genuine JWS3309
Rear differential oil
*3Mazda Long Life Hypoid Gear Oil SG1
Brake/Clutch fluid SAE J1703 or FMVSS116 DOT-3
*1 Mazda Original Long Life Gear Oil IS is superior oil for optimum shift-feel. Using Mazda Original Long Life
Gear Oil IS is recommended.
If Mazda Original Long Life Gear Oil IS cannot be obtained, use standard oil (API Service GL-4 (SAE
75W-90)). However, shifting in very low temperatures may become difficult.
*2 Periodic replacement is unnecessary.*3 Replacement is necessary when the component is submerged in water.
NOTE
Refer to Introduction on (page 6-2) for owner's responsibility in protecting your investment.
▼Capacities
(Approximate Quantities)
Item
Capacity
Engine oil With oil filter replacement
4.3 L (4.5 US qt, 3.8 Imp qt)
Without oil filter replacement 4.1 L (4.3 US qt, 3.6 Imp qt)
Coolant Manual transmission
6.0 L (6.3 US qt, 5.3 Imp qt)
Automatic transmission U.S.A. and Canada 5.7 L (6.0 US qt, 5.0 Imp qt)
Mexico
5.8 L (6.1 US qt, 5.1 Imp qt)
Manual transmission oil 2.0 L (2.1 US qt, 1.8 Imp qt)
Automatic transmission fluid 7.2 L (7.6 US qt, 6.3 Imp qt)
Rear differential oil 0.6 L (0.6 US qt, 0.5 Imp qt)
Fuel tank 45.0 L (11.9 US gal, 9.90 Imp gal)
Check oil and fluid levels with dipsticks or reservoir gauges.
Specifications
Specifications
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