Product Manual

1-3
FUEL RECOMMENDATIONS
WARNING
Gasoline and LPG are highly flam-
mable and explosive and can cause severe per-
sonal injury or death. Do not smoke or turn elec-
trical switches ON or OFF where fuel fumes,
tanks or equipment are present or in areas shar-
ing ventilation. Keep flames, sparks, pilot lights,
arc-producing equipment, switches and all oth-
er sources of ignition well away. Keep a type
ABC fire extinguisher in the vehicle.
Gasoline Models
Use clean, fresh unleaded gasoline having a mini-
mum octane rating (Anti-Knock Index) of 87.
Leaded gasoline may be used but will result in the
extra maintenance required for removing combus-
tion chamber and spark plug deposits. Do not use
gasoline or gasoline additives (de-icers) containing
methanol because methanol can be corrosive to
fuel system components.
CAUTION
Do not use gasoline or gasoline ad-
ditives containing methanol because methanol
can be corrosive to fuel system components.
Avoid using highly leaded gasolines and lead
additives because of the extra engine mainte-
nance that will be required.
LPG Models
Use clean, fresh HD-5 grade liquified petroleum gas
(LPG) or equivalent product consisting of at least
90 percent propane. Commercial liquified petro-
leum gas fuels may contain more than 2.5 percent
butane, which can result in poor fuel vaporization
and poor engine starting in ambient temperatures
below 32° F (0° C).
Satisfactory performance requires that the LPG va-
por be supplied at a pressure within the range indi-
cated in Specifications (Page 5-1).
WARNING
High LPG supply pressure can
cause gas leaks which can lead to fire and se-
vere personal injury or death. LPG supply pres-
sure must be adjusted to Specifications by qual-
ified personnel.
ENGINE OIL RECOMMENDATIONS
Use API (American Petroleum Institute) perfor-
mance Class SJ engine oil or better. Also look for
the SAE (Society of Automotive Engineers) viscos-
ity grade. Referring to Table 1-1, choose the viscos-
ity grade appropriate for the ambient temperatures
expected until the next scheduled oil change.
Single-grade SAE 30 oil is preferable when temper-
atures are consistently above freezing. Multigrade
oils are better when wide temperature variations are
expected.
TABLE 1-1. OIL VISCOSITY VS. TEMPERATURE
EXPECTED AMBIENT
TEMPERATURES
SAE VISCOSITY
GRADE
32° F (0° C) and higher 30
10° F to 100° F (−12° C to 38° C) 15W-40
0° F to 80° F (−18° C to 27° C)
10W-30
10W-40
−20° F to 50° F (−28° C to 10° C) 5W-30
STARTING BATTERIES
See Specifications (Page 5-1) regarding minimum
battery ratings for reliable genset cranking, espe-
cially in cold weather. Also see PERIODIC MAINTE-
NANCE SCHEDULE (Page 3-1) and the battery
manufacturer’s instructions regarding battery main-
tenance. Reliable genset starting and starter ser-
vice life depend upon adequate battery capacity
and proper maintenance.
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