Study On Components Rating Of Gasoline Engine As A Performance Quality Indicator Of Lemigas Formulated Api Sl Lubricant

Setyo Widodo, Shinta Sari H, Catur Yuliani R, Subiyanto Subiyanto

Abstract


Poor lubrication may cause wear on the surface moving parts of engine components such as bearings due to the metal-to-metal contact. Engine components utilized on the road-test of gasoline engine’s lubricating oil API SL showed wear and tear on some parts of them. The sum of wear occurred during the road test were varied. Therefore, an analysis of wear quantity of engine’s components was a necessity in order to get information about lubrication condition on engine. Analysis of wear was conducted by components’ rating based on the standard specifications set out for performance level of lubricant oil API SL and ILSAC GF-3 (SNI 06-7069-2005). Analysis based on Seq. IIIF showed that average value of the piston skirt varnish is 10, low temperature viscosity is 4673 cP, and cam wear lifter is 0.002 mm. It was also showed that the minimum kinematics viscosity increase was managed to be stay-in-grade. Analysis based on Seq. IVA showed that the average value of cam wear is 0.0015 mm. Analysis based on Seq. VII showed that the value of bearing weight loss was 0.010 g and there was no deposit at high temperatures. Shear stability analysis based on Seq. VIII showed that the viscosity of lubricant oil is still in the range of allowed values.


Keywords


rating; gasoline engine components; API SL lubricating oil

Full Text:

PDF

References


Booser E.R., “Handbook of Lubricant Theory

and Practice of Tribology”, Vol.I, Application

and Maintenance, Florida, USA, 1996.

Booser E.R., “Handbook of Lubricant Theory

and Practice of Tribology”, Vol.II, Application

and Maintenance, Florida, USA, 1996.

Dirjen Migas, Daftar Umum Nomor Pelumas

Terdaftar , Jakarta 2005.

Keputusan Menteri Pertambangan dan Energi

No. 1748 K/34/MPE/1999, 30 Desember

jo. No. 019/34/M.PE/1988 12 January 1988

Ketentuan Wajib Daftar Pelumas yang

beredar di Indonesia.

Keputusan Presiden No. 8 Tahun 1988 dan

Keputusan Presiden No. 21 Tahun 2001 Tentang

Penyediaan dan Pelayanan Pelumas.

Keputusan Bersama Menteri Energi Dan Sumber

Daya Mineral, Menteri Keuangan Dan Menteri

Perindustrian Dan Perdagangan Republik Indonesia,

tentang Ketentuan Impor Pelumas

Menteri Energi Dan Sumber Daya Mineral,

Menteri Keuangan Dan Menteri Perindustrian

Dan Perdagangan Republik Indonesia.

ASTM Standard Hand Book Vol. 05.01 : ASTM

D 445 -04 “Standard Test Method for Cinematic

Viscosity of Transparent and Opaque

Liquids (and the Calculation of Dynamic Viscosity)”,

SAE Handbook, “Fuel and Lubricants”, Vol. I,

Part 12, 2002.

Freeman, P., “Lubrication and friction”, Sir

Isaac Pitman & Sons Ltd., USA, 1962.

Wartawan, A.L., “Pelumas Otomotif dan

Industri”, Balai Pustaka Jakarta, 1998.

Wartawan, Anton L, “Efek Temperatur

Terhadap Keausan”, 2000.

ASTM Standard Hand Book Vol. 05.01: ASTM

D2270-04, “Standard Practice for Calculating

Viscosity Index from Cinematic Viscosity at 40

& 100°C”, 2005

SNI 06-7069-2005, Badan Standardisasi Nasional,

ASTM Standard Hand Book Vol. 05.02 : ASTM

D 5293-04, “Standard Test Method for Apparent

Viscosity of Engine Oils Between “5 and

“35°C Using the Cold-Cranking Simulator”,

ASTM Standard Hand Book Vol. 05.02 : ASTM

D 4683-04, “Standard Test Method for Measuring

Viscosity at High Shear Rate and High

Temperature by Tapered Bearing Simulator”,




DOI: https://doi.org/10.29017/SCOG.33.3.825

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.