A new level of extended-drain-interval performance

Transcription

1 Castrol Hypuron Advanced Formula 1W-3 Diesel Engine Oil A new level of extended-drain-interval performance Summary Castrol Hypuron Advanced Formula 1W-3 sets a new standard of performance for diesel engine oil. This part-synthetic formula was designed to allow users to safely extend oil drain intervals up to 7, miles or 9 hours.* Hypuron AF 1W-3 enables this extreme extended drain interval while still providing all of the engine protection expected from the high-quality Hypuron brand. This paper provides development and field-test results that support the extended-drain-interval performance of Hypuron AF 1W-3. *In conjunction with a proper used oil analysis program like Castrol Labcheck. Product Description Hypuron AF 1W-3 is a part-synthetic heavy duty diesel engine oil formulated to meet: API CJ-4 Cummins CES 281 Mack EO-O Premium Plus Volvo VDS-4 CAT ECF-3 Detroit Fluid Specification 93K218 2 BP Lubricants USA, Inc.

2 Physical and chemical properties Property Typical Value KV1 C, cst 12.1 KO Shear loss, 9 cycles 1% VI 142 TBN, mg/g KOH 1.6 Ca, ppm 9 Mg, ppm 12 Zn, ppm 12 P, ppm 113 B,ppm 66 Mo, ppm 49 Pour Point, C -42 HTHS, mpa-s 3.62 Some notes regarding the physical and chemical properties of this product: In order to meet the HTHS requirements of CJ-4 (3. min) and still be a 1W-3, it is necessary to formulate this oil near the top of the specification for an SAE 3 oil (12. cst max). This, coupled with very good shear stability, means that this oil will mildly increase in viscosity to an SAE 4 grade. This is anticipated and acceptable. Hypuron AF 1W-3 has the same high level of starting TBN as Hypuron W-4. As will be shown in the field test section, the TBN retention profile is quite good. This oil has a mixed detergent system, with roughly equal concentrations of calcium and magnesium, and is easily distinguished from Hypuron W- 4 and Tection Extra W-4 on that basis. Also, this oil features both molybdenum and boron. Hypuron AF 1W-3 contains no sodium or potassium. The pour point of this oil is very low and it has excellent starting performance in cold weather. 2 BP Lubricants USA, Inc.

3 Field and Customer Testing This section describes the results of two tests that were used to develop and validate the performance of Hypuron AF 1W-3. Charts including used oil analysis data are included as a means of demonstrating excellent performance in the areas of wear control, oxidation resistance, and TBN retention. Test #1 On-road fleet Routes from Mid-West to West Coast, then back to East Coast Approx., miles/week 27 Cummins ISX engines Very similar duty cycles 1, mile oil samples for analysis Approx. 7, miles per drain / 2 drain intervals Hypuron W-4 tested as reference The charts on the following pages show the average used oil analysis data with respect to oil age. Charts 1 and 2 show wear metals, chart 3 shows TBN retention, and chart 4 shows oxidation. Chart shows the viscosity data note that some thickening out of grade does occur at long drain intervals. Chart 1 Iron Concentration Vs. Oil Age Iron, ppm , 2, 3, 4,, 6, 7, 8, 2 BP Lubricants USA, Inc.

4 Chart 2 Metal Concentration Vs. Oil Age 2 Metal, ppm 1 Copper Aluminum Lead 1, 2, 3, 4,, 6, 7, 8, Chart 3 TBN Vs. Oil Age TBN, mg/g KOH , 2, 3, 4,, 6, 7, 8, 2 BP Lubricants USA, Inc.

5 Chart 4 Oxidation Index vs. Oil age Oxidation Index , 2, 3, 4,, 6, 7, 8, Chart Viscosity vs. Oil Age 16 Kinematic cst , 2, 3, 4,, 6, 7, 8, 2 BP Lubricants USA, Inc.

6 Test #2 Test #2 is ongoing with a refuse customer in New Brunswick, NJ. The test vehicles predominantly have Mack engines; there are some CAT engines as well. This is a large test with more than 6 vehicles. The goal of the test is to extend the drain from 4 hours with Tection Extra to 9 hours with Hypuron AF 1W- 3. As the data shown in the following tables demonstrate, the oil is performing very well in this application. Chart 1 Iron Concentration. vs. oil age Iron, ppm Oil Age, hours 2 BP Lubricants USA, Inc.

7 Chart 2 Metal Concentration vs. Oil Age 2 2 Metal, ppm 1 Copper Lead Aluminum Oil Age Chart 3 Total Base Number vs. Oil Age, ASTM D Total Base Number, mg/g KOH Oil Age, hours 2 BP Lubricants USA, Inc.

8 Chart 4 Oxidation Index vs. Oil Age Oxidation Index Oil Age, hours Chart Viscosity vs. Oil Age Kinematic 1C, cst Oil Age, hours 2 BP Lubricants USA, Inc.