It was the cleanest oil change I’ve ever seen. I can’t even remember where he attached the vacuum to, but it had a tube with threading that fit an oil jug and then attached to a shopvac down the line, and it just sucked the oil out into the old container and then he capped the container and that was that. I was gobsmacked

TIL. Thanks for the information! Once I saw a guy use a special vacuum set up but I don’t think it’s typical. I almost always change my own oil anyways

At oil change shops I’m pretty sure they use compressed air to blow all the oil and residue out

Just as Jesus intended

Just let loose a bloodcurdling scream

You should not use contractions in essays anyway

AB type females can develop dangerous antibodies during pregnancy, and so even if you’ve never been pregnant (or think you’ve never been pregnant) there is still statistically an additional risk because there’s no good way to know for certain whether you’ve has ever been pregnant. The tests and screening for blood antibodies are expensive. Because of the heightened risk, taking AB positive female blood can be more expensive and complicated than it’s worth, so many blood banks just don’t actively encourage AB females to donate as often. There is still use for any kind of blood, even if it is used for research or if they use the RBC and waste the plasma. They certainly would never turn you away, but they also won’t regularly pester you the way they will an O- or O+ donor

AB+ male donor plasma is compatible with all blood types (universal plasma donor) and so they really want that. They call it liquid gold

I don’t know enough about blood banking specifically but it’s possible that there are some blood banks who have better capacity to screen any female AB plasma for HLA antibodies and so they don’t care as much. Idk. I just know as an AB+ female, my local blood bank was like “Don’t donate unless we tell you we need it”

Most donor blood is O+

O- is great because it is (almost always*) usable by anyone of any blood type, but only like 7% of people have it, so the overall supply is not very high and it’s typically reserved for emergencies and O- patients.

O+ can be given to most people because most people have O+ blood. Something like 30-40% of people have O+ and can thus receive O+ donations. All the Rh+ blood types can receive O+ blood too, which accounts for the vast majority of people. A+ is something like 25-30% of the population and B+ is like 10%. Altogether, O+, A+, B+, and AB+ make up probably about 75-85% of the population, and all of those people can receive O+ blood donations, thus the supply of O+ blood is the most-needed most of the time.

Obviously they also want as much O- as possible too. Hell, they want all of them all the time except AB type blood from females.

*Blood typing is actually a lot more complicated than A/B antigen and Rh factor, so some people with certain antigens need very specific donor blood or autologous blood that they donate themselves prior to a procedure or whatnot.

+/-

Miami/Tampa/Orlando

Seattle

Atlanta

DC

Portland

Minneapolis/St. Paul

Philly

New Orleans

Kansas City