PART 8: MAINTENANCE AND SERVICE
PB1319 (CAT. NO. 5296 ) —142— 22-01691 (R02/02)
Antifreeze Mixture: A 53% mixture of low silicate antifreeze with 47%
water is sufficient for year-round normal operation. This will normally
protect your engine from freezing and boil-over. Note in the chart that
100% antifreeze is no more effective than a 30% mixture.
Some Tips about Additives:
• If you add supplemental coolant additives to your radiator, main-
tain them at the recommended levels. Read the label carefully.
Too much additive could harm your vehicle.
• Antifreeze solutions containing antileak additives may quickly
restrict your water filter. If this happens, your filter won’t work. So
stay away from antileak additives.
• Don’t add rust inhibitors, radiator sealants, or water pump lubri-
cants containing soluble oil to the coolant. These additives can
cause the anticorrosion chemicals not to work.
Topping Up (For a Standard or Low Flow System)
With the engine cold, top up with premixed coolant. Add the coolant
through the pressure cap neck on the surge tank or recovery bottle.
The surge tank or recovery bottle is on top of the radiator, on the fire-
wall, on the service module, or on the front of the cab. For the proper
level, see illustration below.
Antifreeze (per-
cent by volume)
0 102030405053576068708090100
Te m p.
Protec-
tion
Deg
C
0 -4 -9 -16 -24 -36 -40 -46 -53 -68 -65 -49 -35 -16
Deg
F
+32 +24 +16 +4 -12 -34 -40 -50 -63 -92 -85 -57 -31 +4
NOTE: Never exceed a 64/36 antifreeze/water mix ratio, it
will increase the risk of silicate drop-out. Additionally, it may
not increase antifreeze protection, and it could decrease it.
03019
To Next Page
Loading...
