I would check local oil distributors... Graingers is higher than hell... I buy it local here in Austin at Allied Oil Distributors for $ 82.00 / 5 gal. , and it just went up... Last time it was $78.00... Hope you can find some cheaper than Graingers !! This oil is approved fot Jet Central Engines, and that's all we have been running for a very long time.. No issue's. I ran Aeroshell 500 only in my AMT's for 15+ years and never had any issues, but I fly/sell Jet Central now and the best thing about the DTE is that it's Human Friendly !!


Good Luck,

Danno