Generac Power Systems 53187 - Manual (Page 93)

PART 3- ENGINE
LUBRICATION & COOLING SYSTEM
i
SECTION 3.4
PERIODIC MAINTENANCE
Section 3.4
PERIODIC MAINTENANCE
Engine Oil System
OIL RECOMMENDATIONS:
Use a high quality detergent oil classified 'For
Service CC or CD". Detergent oils keep the engine
cleaner and reduce carbon deposits. Use oil having the
following SAE (Society of Automotive Engineers) vis­
cosity rating, based on the ambient temperature range
anticipated before the next oil change. Engine crank­
case oil capacity is 3,7 U.S. quarts (3.5 liters) without
oil filter change, or 4.0 U.S. quarts (3.7 liters) with oil
filter change.
AMBIENT TEMPERATURE SAE VISCOSITY
Above 100' F. (37.8’ C.) SAE 40 Oil
40*-100’ F. (4.4‘-37.8* C.) SAE 10W-30
or SAE 30 Oil
Below 40" F. (4.4* C.) SAE 5W-20
or SAE 5W-30 Oil
When adding coolant to the coolant recovery bottle,
add only the recommended 50-50 mixture.
COOLING SYSTEM MAINTENANCE;
□ Inspect the entire cooling system at least once every
month or every 100 hours of operation, whichever
occurs first. Check carefully for leaks, condition of
hoses, tightness of clamps, etc.
□ Every two (2) years, the cooling system should be
drained, flushed and refilled with the recommended
coolant.
CAUTION: After refilling the crankcase with oil,
check oil level on dipstick. NEVER OPERATE
THE ENGINE WITH OIL LEVEL BELOW THE
"ADD" MARK.
NOTE: On new engines, check oH level frequently
during the break-ln period (first 25 hours of opera­
tion). Add oil as required. It Is norm al for the engine
to consum e m ore oil than norm al until the piston
rings have seated properly.
OIL & FILTER CHANGE FREQUENCY:
Change engine oil and oil filter after the first 25
hours of operation. Thereafter, change oil and filter
every six (6) months or every 250 operating hours,
whichever occurs first.
Engine Cooling System
RECOMMENDED COOLANT:
Use a 50-50 mixture of low silicate, ethylene glycol
base anti-freeze and soft water. Use only S( j FT
WATER and LOW SILICATE anti-freeze, if desired, a
high quality rust inhibitor may be added to the recom­
mended mixture.
CAUTION: DO NOT use any chromate base rust
inhibitor with ethylene glycol base antl-freeze
or the formation of chromium hydroxide (green
slime) will result. Green slime in the cooling
system will cause overheating. Engines that
have been run with a chromate base inhibitor
must be chemically cleaned before adding eth-
ylene glycol type antl-freeze.________________
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