Owner Maintenance; Maintenance and Care- Page 435

6–31

Maintenance and Care

Owner Maintenance

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 F and L marks 

on the coolant reservoir when the engine 

is cool.

If it is at or near L, add enough coolant to 

the coolant reservoir to provide freezing 

and corrosion protection and to bring the 

level to F.

Securely tighten the coolant reservoir tank 

cap after adding coolant.

CAUTION



  Radiator coolant will damage paint.

  Rinse it off quickly if spilled.



  Use only soft (demineralized) water in 

the coolant mixture. Water that contains 

minerals will cut down on the coolant's 

effectiveness.



  Do not add only water. Always add a 

proper coolant mixture.



  The engine has aluminum parts and 

must be protected by an ethylene-glycol-

based coolant to prevent corrosion and 

freezing.



  DO NOT USE coolants Containing 

Alcohol, methanol, Borate or Silicate.

  These coolants could damage the 

cooling system.



  DO NOT MIX alcohol or methanol with 

the coolant. This could damage the 

cooling system.



  Do not use a solution that contains more 

than 60% antifreeze.

  This would reduce effectiveness.



  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.

Mazda3_8FA4-EA-15G_Edition1.indb   31

2015/05/11   14:02:16