Volvo D12, Operator'S Manual

Page: 55 / 214

Fuel System 51
Diesel Fuel Specification
Quality
Fuel quality is an important factor in ob-
taining satisfactory engine performance,
long engine life and acceptable exhaust
emission levels. Volvo engines are designed
to operate on most diesel fuels commer-
cially available today. Volvo Trucks North
America, Inc. recommends the use of diesel
oil fuel which meets the specification
ASTM D975 (grades No. 2–D and
No. 1–D).
NOTE! The use of lighter fuels (grade
No. 1–D) can reduce fuel economy.
The fuels used must be clean, completely
distilled, stable and non-corrosive. Always
try to keep the fuel tank full. Do not put al-
cohol into the fuel tank. Fill the tank after
completing driving for the day.
NOTE! When draining the fuel tank, col-
lect the waste in a fuelproof container. Take
the drained fuel and water to a recycle or
waste management center.
Open the drain at the bottom of the fuel
tank approximately every 30,000 miles
(50,000 km) or 300 hours, to drain off any
water and/or sediment.
Yearly or at 120,000 miles (200,000 km),
tighten all fuel tank mountings and brack-
ets. Check all hoses, pipes and lines to and
from the fuel tank. At the same time, in-
spect tank and connections for any signs of
leakage. Make sure that hoses and lines are
not resting on or touching shafts, couplings,
hot surfaces or sharp areas. Since all ma-
chinery vibrates and moves to a certain
extent, clamps and ties can fatigue with
age. Inspect fasteners frequently and
tighten or replace them as necessary.