Diesel Engine oils Mobilgard M50

Product Description
Mobilgard M50 is a premium 50 TBN engine oil designed
for use in the most severe residual-fueled medium-speed
diesel applications. This diesel engine oil has been
specially formulated to provide outstanding residual fuel
compatibility characteristics for excellent engine cleanliness,
especially in crankcase, camshaft areas, ring belt and
piston undercrowns. It provides excellent high temperature
oxidation and thermal stability, low volatility, load carrying
properties and corrosion protection.
B e n e f i t s
Mobilgard M50 provides the following benefits when used
as recommended:
Virtually eliminates undercrown deposits
Provides outstanding lube/ fuel compatibility
Maintains camshaft spaces and good crankcase condition
Reduces piston ring belt deposits
Excellent TBN retention resulting in protection against
corrosion and providing long oil life
Industry leading thermal and oxidation stability for long
oil life and good oil consumption control
Separates easily from water
Applications
Mobilgard M50 is especially recommended for use in the
latest medium-speed engines designed with flame-ring
cylinder liners operating on high sulfur fuels. In these
engines significantly reduced oil life and drain intervals,
due to severe TBN depletion, has been experienced as a
result of very low lube oil consumption with conventional
lube oils.
Mobilgard M50 is also recommended for topping up
existing oil charges with a low TBN value to raise them to
an acceptable value.
P r o p e r t i e s
Mobilgard M50 provides excellent resistance to thermal
degradation, and promotes a high level of engine cleanliness
with protection against wear. It has good resistance
to oxidation and viscosity increases over long operating
periods. Relatively high alkalinity reserves in this oil
provides superior protection in neutralizing the strong
acids resulting from the use of high sulfur fuels that find
access to the crankcase to promote oil degradation, ring,
cylinder and bearing corrosion.
Health and Safety
Detailed health and safety information for this product is
provided in a Material Safety Data Sheet which is available
upon request from your Mobil lubricants sales office, or
via the Internet on