The Data Speak for Itself...
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Corporate Office:
Cirlce K Stores Inc.
Tempe, AZ
Website(s): www.circlek.com
Circle K is an international chain of convenience stores, founded in 1951, in El Paso, TX. It is owned and operated by the Canadian-based Alimentation Couche-Tard, which is one of the largest company-owned convenience store operators in the world with more than 16,000 stores across Canada, the United States, Europe, Mexico, Japan, China, and Indonesia. The company operates its corporate stores under mainly Couche-Tard, Mac’s, Circle K, On the Run and also under the affiliated brands 7-jours, Dairy Mart, Daisy Mart and Winks.
Distributed By: Circle K Stores Inc., Tempe, AZ
Manufactured By: Pinnacle Oil, Indianapolis, IN
Purchased at: Tully, NY
Date of purchase: 9/3/2018
Website(s): www.circlek.com
The results of the tests conducted on this sample are consistent with their labeled claims.
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Physical Properties |  |
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| Elemental Analysis | |
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| Labeling | |
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Note1: Although laboratory tests alone cannot be used to establish if engine oil meets an API Service Category, they can be used to determine if it doesn't.
Note2: The specifications for flash point and viscosity @ 100°C include only minimum values; the maximum values shown in the “standard” area of the chart are truncated for illustrative purposes.
| PHYSICAL TESTS (click for test details) - a | Standard | Circle K |
| Flash Point in ºC (ASTM D92) | 170/177 Min-c | 233 |
| Viscosity @ 100ºC, cSt (ASTM D445) | 6.8 Min | 8.2 |
| Viscosity @40ºC, cSt (ASTM D445) | 41.4 | |
| Viscosity Index (ASTM D2270) | 177 | |
| Brookfield Viscosity @-40ºC mPa s (cP)(ASTM D2983) | 20,000 Max | 18,069 |
| ELEMENTAL ANALYSIS (click for test details) - a, b | ||
| Additives | ||
| Calcium, ppm | 10 | |
| Magnesium, ppm | 3 | |
| Phosphorus, ppm | 150 | |
| Zinc, ppm | 6 | |
| Molybdenum, ppm | <1 | |
| Barium, ppm | <1 | |
| Boron, ppm | 51 | |
| Silicon, ppm | 1 | |
| Potassium, ppm | <1 | |
| Manganese, ppm | <1 | |
| Titanium, ppm | <1 | |
| Copper, ppm | <1 | |
| Sodium, ppm | <1 | |
| Vanadium, ppm | <1 | |
| Contaminants | ||
| Silver, ppm | <1 | |
| Aluminum, ppm | <1 | |
| Chromium, ppm | <1 | |
| Iron, ppm | <1 | |
| Nickel, ppm | <1 | |
| Lead, ppm | <1 | |
| Antimony, ppm | <1 | |
| Tin, ppm | <1 | |
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