
Preservatives 43
7 Preservatives
R
equirements
The MTU conditions for preservative approval are specified in MTU Factory Standards for
Deliveries (MTL). The following standards are available:
• Initial-operation oil and corrosion-inhibitor oil, MTL 5051
• Corrosion inhibitors for external preservation, MTL 5052
The preservation product manufacturer is informed in writing if his product is approved by MTU.
Types of preservation
See "Preservation specifications", Chapter 9 (→ Page 83)
Initial operation oils and corrosion inhibiting oils for internal preservation
SAE 30 viscosity grade corrosion inhibiting oils are to be used for internal preservation (oil-
moistened components) of MTU engines and gearboxes.
These oils may also be used for running-in and acceptance testing procedures. Some are also suitable for
continuous operation, see "Approved fluids and lubricants", Chapter 8 (→ Page 45).
Corrosion inhibitors for external preservation
For external preservation, all non-painted parts are to be treated with a corrosion inhibitor providing
a wax-like protective coating after the inhibitor solvent has evaporated.
Corrosion inhibiting oils for internal preservation of the fuel system
Fuel injection-pump test oil conforming to DIN ISO 4113 is to be used for internal preservation of the fuel
system. T he engine should be run with these oils for the last 10 minutes before shutdown.
Preservation can also be effected using diesel fuel to which approximately 10-12% corrosion-
inhibitor oil for internal preservation has been added.
Corrosion inhibitors for internal preservation of the cooling circuit
See "Approved fluids and lubricants", Chapter 8 (→ Page 45)
See "Preservation specifications", Chapter 9 (→ Page 83)
A001061/34E 09-11 ©MTU
TIM ID: 0000010138 – 004
Comentarios a estos manuales