0379371 JOHNSON PISTON RING SET,.040 O.S.

Lubricant Recommendations
Caterpillar Natural Gas Engine Oil (NGEO)
Caterpillar NGEO is formulated to provide maximum performance and life in Caterpillar Gas Engines. This low ash oil has 0.45 percent sulfated ash (ASTM D874) and 5.0 Total Base Number (TBN), (ASTM2896).CAT NGEO is formulated from select base stocks blended with special additives to provide excellent anti-oxidation/nitration properties and thermal stability. CAT NGEO reduces level of carbon and sludge formation and provides excellent oil and filter life. The product has superior resistance to foaming, exhibits good demulcent properties and provides protection against corrosion. This oil uses an additive technology which offers excellent valve and seat protection, improved piston cleanliness and control of deposit formation.CAT NGEO is recommended for all Caterpillar Gas Engines when used with fuels having a concentration of hydrogen sulfide (H2S) at 0.10 percent by volume or less.This oil can also be used in other manufacturers' engines which permit a low ash, natural gas engine oil for processed natural gas.Commercial Oils
No universal industry specifications are defined for the performance requirement of lubricating oils for gas engines. The following guidelines have been established for commercial oils to be used in Caterpillar Gas Engines. These oil requirements are for processed natural gas ("sweet" natural gas, LPG, ect.).* Caterpillar recommends the use of oils formulated specifically for heavy duty gas engines. Oils formulated for gasoline engines only or for diesel engines only should not be used.* Caterpillar recommends oils that successfully completed 7000 hours of documented field service in standard and/or lean burn engine configurations. The field trial must be performed in a similar configuration to the proposed engine and at a power level that meets or exceeds the proposed engine. During the field trial, the following parameters must be monitored: oil consumption, oil deterioration, and valve recession. At the completion of the field trail, the condition of the oil and the engine must be within the limits listed: - No ring sticking or ring scuffing.- No liner scuffing or carbon cutting from excessive piston top land deposits.- Valve recession must not exceed the limits established by Caterpillar for the engine.- Oil consumption must not exceed two times the initial oil consumption (initial oil consumption is established during the first 1000 hours of operation).- At the end of all specified oil change periods, the oil condition must remain within Caterpillar's limit for: oxidation, nitration, Total Acid Number (TAN) and TBN.* Caterpillar recommends oils that have sulfated ash values between 0.40 and 0.60 percent. Oils for gas engines that meet the requirements of the 7000 hour field trial are acceptable regardless of ash content. * Ashless (0.0 to 0.1 percent sulfated ash) oils that have performed acceptably in the G-Series engines are still acceptable in those engines. All other Caterpillar Gas Engines and G-Series low emissions engines should use oils that meet the previously defined oil ash level and performance requirements.Caterpillar does not recommend lube oils by brand name. Field operation may identify oil brands which yield good results. The oils which may be listed as having good field operating results do not form a Caterpillar recommendation, but serve only as potential oils which may be successful. Individual oil companies control their products and should be accountable for their performance. Discussion with oil companies about particular oil brands should establish product consistency before using that product.Lubrication Oil Condemning Limits
The lubricating oil condemning limits were developed from engine operating experience and used oil analysis. The limits provide guidelines in determining the oil's useful life in the engine. The primary objective of an oil analysis program is to initiate an oil change before the engine experiences a problem with wear metals or deposits. It is not necessary to use all of the additional tests listed above. A customized oil analysis program should include S O S, viscosity, and tests for oil corrosiveness.Trend analysis should be applied to the wear metal analysis portion of the S O S program. If the wear metal rate shows a non-linear increase, the engine oil must be changed. The limits for oxidation, nitration, viscosity, and TBN should also be plotted for trend analysis; however, the limits for these tests are more firm. In all situations, the total oil analysis must be considered when predicting an oil change. If any single parameter exceeds limits, the oil should be re-sampled and the trend lines evaluated. If the trend lines and the test results still indicate a problem, then the oil must be changed.Multi-Viscosity Oils
Performance requirements for multi-viscosity oils in other gas engines are the same as single grade oils. Multi-viscosity oils require a successful 7000 hour field trial as previously described for commercial oils. Field trial data from single grade oils using similar additive do not apply to multi-viscosity oils.Synthetic Oils
Performance requirements for synthetic oils are the same as single grade oils. Synthetic oils require a successful 7000 hour field trial as previously described for commercial oils.Lubricant Viscosities
The following oil compartment recommendations refer only to the SAE viscosity grade for the expected ambient temperature range. The required performance criteria for the oil is defined in the previous lubrication specification section.The minimum temperature for the viscosity grade provides guidelines for the lowest starting temperature with a "cold soaked" engine. Base stocks for blending the oil formulations do differ and variations can exist within a viscosity grade on low temperature characteristics. Therefore, a particular oil may allow lower starting temperatures than given in the chart. Your oil supplier can provide additional information on oil properties.Use the highest viscosity oil possible. Even though the ambient temperature may be low, operating engines can still be subjected to normal oil temperature because of regulated temperature components. The higher viscosity fluids will provide better protection to all components which it contacts during the full day work cycle. Caterpillar, Inc. offers SAE 30 and SAE 40 oils, but SAE 15W40 oil is commercial available.Caterpillar Lubricating Grease
Caterpillar has a grease for all applications.* CAT Multipurpose Molybdenum Grease (MPGM)* CAT Multipurpose Lithium Grease (MPGL)* CAT Special Purpose Grease (SPG)Anti-Seize Compound (ASC)
Use 6V4876