Mazda 2009 Mazda6 Owner's Manual page 362

Maintenance and Care
Owner Maintenance
3.7-liter engine
Use SAE 5W-20 engine oil. If SAE 5W-
20 engine oil is not available, use SAE
10W-30 10W-40 5W-40 engine oil.
The quality designation SM, or ILSAC
must be on the label.
–10
–30
–20 0
–20
0 20
5W-20
qInspecting Engine Oil Level
1. Be sure the vehicle is on a level
surface.
2. Warm up the engine to normal
operating temperature.
3. Turn it off and wait at least 5 minutes
for the oil to return to the oil pan.
4. Pull out the dipstick, wipe it clean, and
reinsert it fully.
2.5-liter engine
8-20
30
10 20 40
80
40 100
60 120
Full
OK
Low
3.7-liter engine
50
5. 2.5-liter engine
Pull it out again and examine the level.
It's OK between Low and Full.
But if it's near or below Low, add
enough oil to bring the level to Full.
3.7-liter engine
Pull it out again and examine the level.
It's OK between Low and Full. But if
it's below Low, add oil to raise the
level within the hatching zone.
CAUTION
Don't add engine oil over Full. This
may cause engine damage.
6. Make sure the O-ring on the dipstick is
positioned properly before reinserting
the dipstick.
Full
Low