Avoid fumes, Engine oil, The following john deere oils are preferred – John Deere z425 User Manual
Page 21: Checking engine oil level, Service engine
Service Engine - 20
SERVICE ENGINE
Avoid Fumes
Engine Oil
Use oil viscosity based on the expected air temperature range during the
period between oil changes.
The following John Deere oils are preferred:
• TURF-GARD™
• PLUS- 4™
Other oils may be used if above John Deere oils are not available,
provided they meet the following specification:
• API Service Classification SG or higher
Checking Engine Oil Level
NOTE: Check oil twice a day if you run engine over 4 hours in a day.
Make sure engine is cold when checking engine oil level.
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Clean area around dipstick to prevent debris from falling into crankcase.
MX37908
Picture Note: Single cylinder Briggs and Stratton shown.
MX37939
Picture Note: Twin cylinder Briggs and Stratton shown.
MX37910
Picture Note: Twin cylinder Kawasaki shown.
3. Remove dipstick (A). Wipe with clean cloth.
4. Install dipstick:
• Briggs and Stratton Engines: Install and tighten dipstick.
• Kawasaki Engines: Install dipstick in tube but do not tighten. Allow
dipstick threads to rest on top of tube and rotate cap counterclockwise
until it “clicks” or drops into place.
5. Remove dipstick.
c
CAUTION: Avoid injury! Engine exhaust fumes contain
carbon monoxide and can cause serious illness or death.
Do not run an engine in an enclosed area, such as a garage, even
with doors or windows opened.
Move the machine to an outside area before running the engine.
IMPORTANT: Avoid damage! Failure to check the oil level
regularly could lead to serious engine problems if oil level is low:
• Check oil level before operating.
• Check oil level when the engine is cold and not running.
• Keep level between the FULL and the ADD marks.
• Shut off engine before adding oil.
IMPORTANT: Avoid damage! Dirt and contamination can enter
engine when checking oil level. Clean area around dipstick before
loosening or removing.
32
0
10
20
30
40
-10
-20
-30
-20
0
20
40
60
80
100
50
122
-40
-40
F
C
SAE 5W-30
SAE 10W-30
SAE 10W-40
A
A
A