Acea Regualtions - Acea Sequences; Api / Mil Sequences; International Specifications; Lubricant - Kohler RD 441 Service Manual

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Table Of Contents

Table of Contents

LUBRICANT

SAE Classification

n the SAE classification, oils differ on the basis of their

viscosity, and no other qualitative characteristic is taken

into account.

The first number refers to the viscosity when the engine

is cold (symbol W = winter), while the second considers

viscosity with the engine at régime.

The criteria for choosing must consider, during winter, the

lowest outside temperature to which the engine will be

subject and the highest functioning temperature during

summer.

Single-degree oils are normally used when the running

temperature varies scarcely.

Multi-degree oil is less sensitive to temperature changes.

International specifications

They define testing performances and procedures that the lubricants need to successfully respond to in several engine testing

and laboratory analysis so as to be considered qualified and in conformity to the regulations set for each lubrication kind.

A.P.I

: ( American Petroleum Institute )

: Engine oil U.S. military specifications released for logistic reasons

MIL

ACEA

: European Automobile Manufacturers Association

Tables shown on this page are of useful reference when buying a kind of oil.

Codes are usually printed-out on the oil container and the understanding of their meaning is useful for comparing different

brands and choosing the kind with the right characteristics.

Usually a specification showing a following letter or number is preferable to one with a preceding letter or number.

An SF oil, for instance, is more performing than a SE oil but less performing than a SG one.

LIGHT DUTY DIESEL ENGINES

B1 = Low-viscosity, for frictions reduction

B2 = Standard

B3 =High performances (indirect injection)

B4 = High quality (direct injection)

Workshop Manual KD 441_cod. 1.5302.865_2

Maintenance - Recommended oil type - Refilling