C - Peterbilt Motors Company
C - Peterbilt Motors Company
C - Peterbilt Motors Company
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5<br />
Maintenance Specifications<br />
Checking Coolant Condition<br />
To ensure the Extended Life Coolant<br />
(ELC) in your vehicle always provides<br />
maximum freeze protection, perform<br />
the following tests:<br />
1. Check the coolant color at every<br />
maintenance interval. It should be<br />
a bright red with no signs of debris<br />
or any oil.<br />
2. Test the freeze point at least two<br />
times a year. A refractometer or<br />
test strips can be used to measure<br />
the protection level.<br />
3. Keep the cooling system at full<br />
levels by topping-up using ELC<br />
pre-diluted to 50/50 blend.<br />
5-18
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