Coolant Type Selection - Lexus RX300 2003 Owner's Manual

Coolant type selection

Use of improper coolants may damage your engine cooling
system. Your coolant must contain ethylene–glycol type
coolant for a proper corrosion protection of your engine that
contains aluminum components.
Genuine Long life Coolant" in your Lexus vehicle. In order to
avoid technical problems, we strongly recommend using
"Toyota Genuine Ling Life Coolant" or equivalent.
In addition to preventing freezing and subsequent damage to
the engine, this type of coolant will also prevent corrosion.
Further supplemental inhibitors or additives are neither
needed nor recommended.
Read the coolant container for information on freeze
protection. Follow the manufacturer's directions for how much
to mix with plain water (preferably demineralized water or
distilled water). The total capacity of the cooling system is
given on page 282.
We recommend to use 50% solution for your Lexus, to provide
protection down to about –35_C (–31_F). When it is extremely
cold, to provide protection down to about –50_C (–58_F), 60%
solution is recommended. Do not use more than 70% solution
for better coolant performance.
NOTICE
Do not use alcohol type antifreeze or plain water alone.
The engine cooling system is integral to maximizing
performance of your Lexus vehicle. In line with this, it is
strongly recommended that you use "Toyota Genuine Ling Life
Coolant" for protecting the system, as it is and ethylene–glycol
based premium antifreeze coolant with excellent corrosion
We have used "Toyota
protection properties that has been specifically formulated for
use in Lexus vehicles.
Please contact your Lexus dealer for further details of the
"Toyota Genuine Long Life Coolant" range.
2003 RX300 from Aug. 02' Prod. (OM48442U)