DO-IT-YOURSELF MAINTENANCE - Engine and Chassis -> Checking the engine oil level for Your Toyota Prius 4 Door First Generation (1997-2003)

Checking the engine oil level  
NOTICE  
NOTICE  
Low level  
Full level  
Make sure to hold a rag under the  
dipstick, to avoid spilling drops of  
engine oil when you pull it out.  
z Be careful not to drop the engine  
oil on the vehicle components.  
z Avoid overfilling, or the hybrid sys-  
tem could be damaged.  
z Check the oil level on the dipstick  
once again after adding the oil.  
CAUTION  
Add oil  
O.K.  
Too full  
Be careful not to touch the hot ex-  
haust manifold.  
If the oil level is below or only slightly  
above the low level, add engine oil of  
the same type as already in the engine.  
With the hybrid system at operating  
temperature and turned off, check the  
oil level on the dipstick.  
Remove the oil filler cap and add engine  
oil in small quantities at a time, checking  
the dipstick.  
1. To get  
a
true reading, the vehicle  
should be on a level spot. After turning  
off the hybrid system, wait a few min-  
utes for the oil to drain back into the  
bottom of the engine.  
The approximate quantity of oil needed to  
fill between the low level and the full level  
on the dipstick is indicated below for ref-  
erence.  
2. Pull out the dipstick, and wipe it clean  
with a rag.  
When the level reaches within the correct  
range, install the filler cap handtight.  
3. Reinsert the dipstick—push it in as far  
as it will go, or the reading will not be  
correct.  
Oil quantity, L (qt., Imp. qt.):  
1.5 (1.6, 1.3)  
4. Pull the dipstick out and look at the oil  
level on the end.  
208  
ENGINE OIL SELECTION  
Oil identification marks  
Use API grade SJ “EnergyConserving”,  
SL “EnergyConserving” or ILSAC multi-  
grade engine oil.  
Either or both API registered marks are  
added to some oil containers to help  
you select the oil you should use.  
Recommended viscosity (SAE):  
The API Service Symbol is located any-  
where on the outside of the container.  
The top portion of the label shows the oil  
quality by API (American Petroleum Insti-  
tute) designations such as SL. The center  
portion of the label shows the SAE viscos-  
ity grade such as SAE 5W30. “Energy−  
Conserving” shown in the lower portion,  
indicates that the oil has fuelsaving ca-  
pabilities.  
API service symbol  
The ILSAC (International Lubricant Stan-  
dardization and Approval Committee) Certi-  
fication Mark is displayed on the front of  
the container.  
SAE 5W−30 is the best choice for your  
vehicle, for good fuel economy, and  
good starting in cold weather.  
If you use SAE 10W−30 engine oil in  
extremely low temperatures, the engine  
may become difficult to start, so SAE  
5W−30 engine oil is recommended.  
ILSAC certification mark  
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