Checking The Engine Coolant Level - Lexus ES300 Owner's Manual

To ensure excellent lubrication performance for your engine,
the "Toyota Genuine Motor Oil" range is available, which has
been specifically tested and approved for all Lexus engines.
Please contact your Lexus dealer for further details of the
"Toyota Genuine Motor Oil" range.
CHECKING THE ENGINE COOLANT
LEVEL
" 1 Reservoir cap 2 Upper line
Look at the see through coolant reservoir when the
engine is cold. The coolant level is satisfactory if it is
between the "F" and "L" lines on the reservoir. If the level
is low, add ethylene glycol type coolant for a proper
corrosion protection of aluminum components.
The coolant level in the reservoir will vary with engine
temperature. However, if the level is on or below the "L" line,
add coolant. Bring the level up to the "F" line.
Always use ethylene glycol type coolant for a proper corrosion
protection of aluminum components. See information in the
next column.
ENGINE
3 Lower line
315