Atlas Copco QAS 275-325, Instruction Manual, Page: 68 / 114

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Specifications PAROIL
PAROIL from Atlas Copco is the ONLY oil tested
and approved for use in all engines built into Atlas
Copco compressors and generators.
Extensive laboratory and field endurance tests on
Atlas Copco equipment have proven PAROIL to
match all lubrication demands in varied conditions. It
meets stringent quality control specifications to
ensure your equipment will run smoothly and
reliably.
The quality lubricant additives in PAROIL allow for
extended oil change intervals without any loss in
performance or longevity.
PAROIL provides wear protection under extreme
conditions. Powerful oxidation resistance, high
chemical stability and rust- inhibiting additives help
reduce corrosion, even within engines left idle for
extended periods.
PAROIL contains high quality anti-oxidants to
control deposits, sludge and contaminants that tend to
build up under very high temperatures.
PAROIL's detergent additives keep sludge forming
particles in a fine suspension instead of allowing them
to clog your filter and accumulate in the valve/rocker
cover area.
PAROIL releases excess heat efficiently, whilst
maintaining excellent bore-polish protection to limit
oil consumption.
PAROIL has an excellent Total Base Number (TBN)
retention and more alkalinity to control acid
formation.
PAROIL prevents Soot build-up.
PAROIL is optimized for the latest low emission
EURO -3 & -2, EPA TIER II & III engines running on
low sulphur diesel for lower oil and fuel consumption.
PAROIL Extra and PAROIL E
Synthetic engine oil PAROIL Extra
PAROIL Extra is a Synthetic ultra high performance
diesel engine oil with a high viscosity- index. Atlas
Copco PAROIL Extra is designed to provide
excellent lubrication from start-up in temperatures as
low as -25°C (-13°F).
Mineral engine oil PAROIL E
PAROIL E is a mineral based high performance
diesel engine oil with a high viscosity- index. Atlas
Copco PAROIL E is designed to provide a high level
of performance and protection in standard ambient
conditions as from -15°C (5°F).
Engine oil level check
Consult the Engine Operation Manual for the oil
specifications, viscosity recommendations and oil
change intervals.
For intervals, see section “Maintenance schedule” on
page 65.
Check engine oil level according to the instructions in
the Engine Operation Manual and if necessary top up
with oil.
Engine oil and oil filter change
The table below shows the oil change interval
according to the sulfur content in the fuel.
Liter
US
gal
Imp
gal
cu.ft
Order
number
can
5 1.3 1.1 0.175 1630 0135 00
can
20 5.3 4.4 0.7 1630 0136 00
Liter
US
gal
Imp
gal
cu.ft
Order
number
can 5 1.3 1.1 0.175 1615 5953 00
can 20 5.3 4.4 0.7 1615 5954 00
barrel 209 55.2 46 7.32 1615 5955 00
barrel 1000 264 220 35 1630 0096 00
Sulfur content in fuel, by weight
<0.5% 0.5-1.0% >1.0%
Oil change interval, reached first in operation
500h /
12 months
250h /
12 months
125h /
12 months