I talked to Justin at Coastal Mountain Fuel they sell Petro Canada products here on Van isle he says the cheaper the oil the more likely it is to mist he suggested Iso 32 which is the same as 10 w price $180 plus tax for 20 litres based on supplied info A lot of the high speed vacuum oils are not food safe even though they are great oils They are made for compressors in cars I am no engineer but I am inclined to go with his recommendation But keep in mind this is coming from the same guy who never ever uses anything but XD100 in his 250 Etec LOL
PURITY FG Compressor Fluid
PURITY FG Compressor Fluid for oxidative resistance
PURITY™ FG Compressor Fluid provides lubrication for air compressors and vacuum pumps in food processing plants. PURITY FG Compressor Fluid provides strong resistance to sludge and varnish formation:
Outstanding oxidation resistance
Up to 4,000-hour service in rotary screw compressors
Superb protection against rust and corrosion
Available in ISO VG 32, 46, 68, 100 food-grade compressor oil viscosity grades
PURITY FG Compressor Fluids [read details and download MSDS ]
32, 46, 68, 100
PURITY FG Compressor Fluid for air compressors and vacuum pumps in food processing plants.