Schaeffers does not make a full synthetic 15w40. It is a blend of 100% pure parraffin base oils and PAO synthetic base stocks with synthetic base stock. 5w40 is the only full synthetic oil, which is what I use. My family runs it exclusively in their farm equipment and buys the 15w40 by the drum and gear oil by the pail so when they are placing an order I'll throw in whatever I need. I get a very good deal on it considering the amount of oil the farm buys. Their rep is very knowledgeable and has them on a good maintenance program. They do oil changes in everything based on sampling rather than hours. He has helped reduce their maintenance costs substantially.
Here is my latest UOA for anyone interested.
[PDF]http://schaeffer.rmrdevelopment.com/reports-printreport.asp?batchno=25776&sampno=626399[/PDF]
Here is my latest UOA for anyone interested.
[PDF]http://schaeffer.rmrdevelopment.com/reports-printreport.asp?batchno=25776&sampno=626399[/PDF]
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