Conoco Guardol ECT 15w- 40 is or was manufactured by ConocoPhillips.
The product offered by PSC is either Conoco Guardol ECT 15w- 40 or a replacement product of similar quality and performance.
See below for the equivalent products and select the 'View Manufacturer Info & Data Sheets' tab for safety data sheets, as well as product data sheets to compare specifications, approvals, properties, and performance characteristics.
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