I purchased a IR air compressor with a sears service contract. Went to repair center about purchasing synthetic compressor oil but that they did not use synthetic oil and did not have it for me to purchase.
According to IR, synthetic oil will need to be replaced yearly. I know non synthetic oil has to be changed more often. How can this be cost effective to me and to Sears.
I have to go for repair shop more often and you have to spend more service hours to keep compressor in top notch condition. Difference in cost of oil is about 9 dollars more for synthetic.