Natural gas, low-ash oil
Mobil Pegasus 705 and 805
Mineral oils with 0.5% ash for high-speed natural gas engines.
Choose it when:
- the engine runs on natural gas
- the engine maker requires a low-ash oil
- valve seats and faces wear quickly
Oil selection tool
Oils for gas engines
Mobil Pegasus and Jenbacher N Oil 40 for engines running on natural, landfill and biomass gas. Order online or ask an expert for advice.
Original Mobil oils
from an authorized distributor
Since 1993
in machine lubrication
208 L and 1000 L
order online from OlejeSklep
Oil analysis
oil and engine condition in one report
Choose your oil and order online
Prices and availability come live from OlejeSklep.pl, the Mobipol shop.
Natural gas, high output
Mobil Pegasus 1005 and 1107
Oils for modern, heavily loaded engines, also proven in older models.
Choose it when:
- a high-output engine runs in cogeneration
- the natural gas engine has a catalyst
- you want longer oil drain intervals
Synthetic oil
Mobil Pegasus 1
Synthetic 15W-40 oil with 0.5% ash for the most demanding gas engines.
Choose it when:
- the engine runs in cogeneration or is liquid-cooled
- the oil works across a wide temperature range
- low oil consumption matters to you
PLN 10,997.07incl. VAT · currently unavailable
Product page Mobil Pegasus 1 ↗
Engine maker oil
Jenbacher N Oil 40
Oil developed by INNIO Jenbacher and ExxonMobil for Jenbacher natural gas engines.
Choose it when:
- you have a Jenbacher natural gas engine
- you want one oil for Types 2, 3, 4, 6 and 9
- you plan oil changes based on analysis
PLN 6,816.03incl. VAT · currently unavailable
Product page Jenbacher N Oil 40 ↗
Medium-ash oil
Mobil Pegasus 710
Oil for high-speed lean-burn engines with very low oil consumption.
Choose it when:
- the engine uses very little oil
- the gas contains small amounts of H₂S or chlorine
- you also lubricate a natural gas piston compressor
PLN 5,864.93incl. VAT · currently unavailable
Product page Mobil Pegasus 710 ↗
Landfill and biomass gas
Mobil Pegasus 605 Ultra 40, 610 and 610 Ultra
Oils for engines running on gas contaminated with hydrogen sulfide and chlorine compounds.
Choose it when:
- the engine runs on landfill or biomass gas
- the gas contains hydrogen sulfide or chlorine compounds
- you also lubricate a piston compressor for this gas
Not sure which oil to choose? Ask an expert.
What a good gas engine oil protects against
A gas engine runs for months at full load. Trouble starts with oil nitration, acids from the gas and valve wear, long before a shutdown.
Threat
How the oil protects
Acids from hydrogen sulfide and halides
Pegasus 610 and 610 Ultra have a high base number that neutralizes acids; 610 Ultra also with high hydrogen sulfide levels.
Valve seat and face wear
Low-ash Pegasus 705 and 805 protect valve seats, and Jenbacher N Oil 40 limits valve seat recession.
Oil oxidation and nitrationPegasus 705, 805, 1005 and 1107 resist oxidation and nitration, and synthetic Pegasus 1 lubricates beyond the limits of mineral oils.
Piston and liner scuffing
Pegasus 610 Ultra protects against scuffing with siloxane-containing gas. Pegasus 1107 is for engines with steel pistons and BMEP from 22 bar.
When to change gas engine oil? Test a sample
Sample analysis shows oxidation, nitration, base number and wear metals. You change the oil when it is needed. Order from OlejeSklep: natural gas engine oil analysis, biogas engine oil analysis. How oil analysis works
“Give me the engine maker and type and the gas you run on. I will check which oil is approved for your unit.”
A graduate of Poznan University of Technology. At Mobipol he provides technical support to industrial customers and runs training on oils and greases.
Prefer to call?+48 71 359 34 62Questions before you buy
For natural gas: Pegasus 705, 805, 1005, 1107 and 1, and in Jenbacher engines also N Oil 40. Landfill and biomass gas with hydrogen sulfide or chlorine needs Pegasus 605 Ultra 40, 610 or 610 Ultra.
Each oil has its own approval list. Give us the engine model and gas type, and we will check.
An INNIO Jenbacher and ExxonMobil oil approved for all Jenbacher natural gas engines: Types 2, 3, 4, 6 and 9.
As much as the engine maker requires. Pegasus 1, 705, 805 and 1005 have 0.5% sulfated ash, 605 Ultra 40 and Jenbacher N Oil 40 — 0.6%, 1107 — 0.65%, and 610, 610 Ultra and 710 — 1.0%.
Sample analysis tells you the timing most reliably: nitration and base number show whether the oil can keep working.
