Fuel And Oil Recommendations; Fuel Recommendations - Vanguard OHV V-Twin User Manual

FUEL & OIL RECOMMENDATIONS

Fuel Recommendations

Gasoline Engines
• Use clean, fresh regular unleaded gasoline with a
minimum of 85 octane. Fresh fuel prevents gum
from forming in the fuel system or on essential
carburetor parts. Purchase fuel in a quantity that
can be used within 30 days.
• Do not use gasoline containing Methanol.
• Do not mix oil with gasoline.
• For engine protection use Briggs & Stratton Fuel
Stabilizer #5041 or single use pouch #5058
available from your Authorized Briggs & Stratton
Dealer.
CAUTION: Some fuel, called "oxygenated" or
"reformulated" gasoline, is gasoline blended
with alcohol or ether. Excessive amounts of
these blends can damage the fuel system or
cause performance problems. If any undesir-
able operating symptoms occur, use gasoline
with a lower percentage of alcohol or ether.
Inline Fuel Filter Service
Replace inline fuel filter yearly or every 100 hours,
whichever occurs first. Replace filter if dirt or water
are present. See illustrated parts list for correct
fuel filter.
Gaseous Fuel Engines
AVOID INJURY! Gaseous fuel
systems should only be worked
on in a very well ventilated area.
• Many state, county and city governments
require that service be performed ONLY
outdoors.
• Have a fan blowing across the engine BEFORE
loosening fuel line connections!
NOTE: Gaseous fueled engines require special
equipment to remain emissions certified.
See a certified gaseous fuel dealer or a
certified OEM dealer for service.
Use clean fuel free of moisture or particulate
material, within the following values:
For propane (LPG) fueled engines, use commercial
grade HD% propane. Recommended fuel has a
minimum fuel energy of 2500 BTU/ft
propylene content 5%, butane, heavier gas content
2.5%, minimum propane content 90%.
AVOID INJURY! Gaseous fueled
equipment is equipped with an auto-
matic safety gas fuel lock-off valve.
• Do not operate gaseous fueled equipment if the
fuel lock-off valve is missing or inoperative.
DANGER
3
, maximum
WARNING
7