It's another bad weather day, but we have some busy work to do, and one of the mission specialists has the time to drive us around. We need oil and some photographs.
We were running W100 oil all summer, but switched to W80 at the last oil change. We would have switched on the one before, but neither I nor the airplane knew we were going north into winter already. While he was doing the maintenance the AME bought two cases (12 L each) of oil, and put 20 L in the engines leaving four over for us to use. The engines aren't burning much, maybe a quart each in ten hours, but we want to have some spare, so we need to buy some more. The FBO is all out of W80, but there is a store across the river where we can get some.
They have automotive products displayed on shelves in the reception area, but the woman at the counter knows what Aeroshell W80 is and cheerfully agrees to supply us with a case. "How much is in a case?" asks my coworker, I guess double-checking that we're not asking for some gargantuan amount.
"It's twelve bottles of point nine four six litres each," she says. right off the top of her head. This is may be the nerdiest description of a case of oil I've ever heard. You can buy a 1 litre bottle in the UK. I guess distribution is easier if they have the same size bottles and the same size cardboard boxes all over North America, so what we call one litre of oil is always 0.946 L, because that's one US quart. (The Canadian product doesn't look quite like that: the label is different and the carton is just uncoloured cardboard with the product specifications stamped on it). Maybe next time I add oil to the engine I'll write in the journey log that I added 0.946 L. Or maybe not.
Ultraprecise lady sends someone to the warehouse for a case of oil and then opens the case to assure us that we are buying what we want, even though it's stencilled on the outside of the box. I'm always impressed when suppliers understand and cater to the aviation level of paranoia. We pay for the oil and take it to the hangar where we carry out mission #2.
My colleague loads the oil into the airplane as I take photos of the front cowls. Boss is ordering new cowl plugs (to keep warmth in and birds out while parked) and needs photos so the supplier can see which sort of cowls we have. We grab a ruler off a table and take a couple of pictures with it in the shot, just in case they need the measurements, although he didn't ask for that.
While we are there, I ask the hanger's regular denizens if there has been any sign of the overnight delivery wing covers. Nope. It's only been a week and we're sitting on the 60th parallel, so why would I expect them to have arrived yet?