I’m not someone who’s particularly well-versed when it comes to mechanics. My husband is an engineer who understands things like that much better than I do, whereas I focused on artsy things when I was in college. Thus, when my husband asks me to run an errand for him that’s related to something mechanical he has to do, I always make sure to get all of the facts.
Recently, my husband decided that he was going to do the maintenance on our boat himself. He had the free time to do the work but needed me to pick up some extra items for him. I made him write down everything specific on a list, so that I wouldn’t confuse the Mercury 2 cycle oil that he needed with something else by mistake.