Shell Tellus S2 MA
Industrial Detergent Hydraulic Fluid
Shell Tellus S2 MA fluids are high performance detergent based hydraulic fluids for use where 
emusifiable fluids are preferred. Using proven ashless anti-wear technology they provide 
reliable performance in applications where contamination by aqueous fluids, such as cutting 
fluids, or where cleanliness or control of solid contaminants is important. 
Performance Benefits 
• Protection in severe environments 
The established detergent ａnd modern ashless antiwear technology in Shell Tellus S2 MA fluids 
provides extra protection in challenging 
environments by: 
– Preventing water accumulation 
– Dispersing solid contaminants 
– Preventing corrosion in presence of water 
– Providing low-friction anti-wear 
performance 
Outstanding anti-wear ａnd load-carrying 
properties in hydraulic ａnd geared systems, 
especially under high load ａnd low speed 
boundary lubrication conditions are demonstrated 
by the high Brugger ａnd FZG load values. 
• Fluid life – Maintenance saving 
Shell Tellus MA fluids have good resistance to 
thermal ａnd chemical breakdown to ensure 
consistent performance ａnd protection throughout 
the fluid drain interval. 
• Maintaining system efficiency 
Superior cleanliness in severe environments helps 
keep the hydraulic system functioning efficiently. 
This is supported by excellent air release ａnd antifoam characteristics. 
In addition, Shell Tellus S2 MA provides excellent 
filterability allowing the use of fine filters for extra 
protection ａnd long equipment life. 
Smooth operation of the hydraulic system is 
supported by the low-friction additive system that 
helps reduce stick-slip behaviour under high loads 
or poorly lubricated contacts. 
Shell Tellus S2 MA has a minimum cleanliness of 
max ISO 4406 21/19/16 class (ex Shell filling 
lines) as defined by DIN 51524 specification for 
extra equipment ａnd filter protection. As 
recognized by DIN 51524 specification, the oil 
is exposed to various influences with transport 
ａnd storage that could effect the cleanliness 
level. 
Applications 
• Industrial hydraulic systems
Shell Tellus S2 MA fluids are suitable for a wide 
range of industrial ａnd manufacturing applications 
including: 
– Injection moulding machines 
– Electronically controlled hydraulic equipment 
– Mobile equipment 
– Headstocks ａnd hydraulic controls in automatic 
lathes (when a synthetic or semi-synthetic waterextendible metal working fluid is used) 
Where low start up ａnd high service temperatures 
are encountered the use of Shell Tellus S2 VA 46 is
recommended. 
Specifications ａnd Approvals 
Shell Tellus S2 MA fluids meet the requirements of:
ISO 11158 (HM fluids) 
ASTM 6158-05 (HM fluids) 
Shell Tellus S2 MA fluids are approved by 
• EXTRA PROTECTION 
• WATER TOLERANT
Previous Name: Shell Tellus DO