Test of 15W/4SJ Gasoline Engine Oil We conducted a test of 15W such as SJ gasoline engine oil recently developed by Great Wall Lubricant Group Co., Ltd., and used M to track and test the oil gauge to determine Fe, Pb, Cr, Cu, Al, Si and other wear metal content. Two vehicles are used for driving test and they are represented by No. 1 and No. 2.
In the experimental data, we again plotted the data into curves. Driving Test Data (1 vehicle) Mileage 05 Main source of each element in engine oil 6. Elemental main source FeCu15, V/40 staring vehicle test data (2 vehicles) Mileage only m)o 953 Umbrella "5 regiment 175083 A field 58 Cr metal content 415.
24Si Gray cast iron pistons and gaskets, camshafts, transmission gear spindles, connecting rod bearings, piston pin bushing spindles, connecting rod bearing housings piston washers pistons, connecting rod bearings, engine spindles, oil pump shafts, external dust 6.
5820. 431.65 Control elements for various elements in engine oils. FeCuCrAI5187.6197.
Sand buckle SJ driving test element metal trend (2 cars) 15W/40SJ driving test metal element trend (1 car) From the above analysis results, the engine lubricating oil mainly wear metals Fe, Pb are within the control range, Other wear metals Al, Cr, etc. are also within the control range, and the pollution element Si is also below the control index 5011 Na kg. However, from the figure, it can be seen that the fluctuation of the wear metal cu element is large, but within the control range, this may be sampling. And the errors brought about by the analysis.
No abnormal wear occurred in this driving test, and the car traveled until the engine was working well when D was more than 1 kilometer.
Conclusion Through the running test of 15W/4OSJ gasoline engine oil, the MOA oil meter can be used to monitor the engine working condition, obtain the content of wear metal elements, predict the engine failure, analyze the additive loss and the decay of the oil product.
The relative error is less than 15%.
It is a modern form of guitar derived from the Classical Guitar.
Acoustic Guitar,Brand Spruce Wood Guitar,African Mahogany Acoustic Guitar,Mahogany Classical Guitar
GuiZhou Mollo Musical Instruments Co., Ltd , https://www.mollomusical.com