Engine Coolant Protection Inspection[L3 With Tc] - Mazda CX-7 2007 Workshop Manual

ENGINE COOLANT PROTECTION INSPECTION[L3 WITH TC]

1. Measure the engine coolant temperature and specific gravity using a thermometer and a hydrometer.
Caution
• Use engine coolant at a concentration that meets the environmental conditions in which the
vehicle is driven, otherwise engine damage could occur.
• 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.
• Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut
down on the coolant's effectiveness.
• Engine coolant damages paint. If engine coolant does get on a painted surface, rinse it off quickly.
Note
• If the "FL22" mark is shown on or near the cooling system cap, use FL22 type engine coolant.
• FL22 type engine coolant is shipped as a
diluted solution (55% coolant, 45% water).
Use the solution as is when replacing
coolant.
2. Determine the engine coolant protection level by
referring to the graph shown in the figure.
• If the engine coolant protection level is not
correct, add water or engine coolant.
End Of Sie
01-12–4
COOLING SYSTEM [L3 WITH TC]
COOLANT PROTECTION
SPECIFIC
(EXCEPT FL22 TYPE ENGINE COOLANT)
GRAVITY
1.10
1.09
1.08
1.07
1.06
1.05
1.04
1.03
1.02
1.01
1.00
0 5 10 15 20 25 30 35 40 45 50
{32} {41} {50} {59} {68}
COOLANT TEMPERATURE °C {°F}
id011239800400
acxuuw00002058
55%
45%
35%
{77} {86} {95} {104} {113} {122}
acxuuw00002059