Yeah, I get all that. But oil caps didn't used to require "directions", so they wouldn't jam up and cause issues. I don't have an issue with them either. But that doesn't change the fact the design, along with the materials used in it, (plastic on plastic), begs for problems.The plastic caps work perfect as long as they are not overtightened.
Mine has had over 40 oil changes and is in perfect condition. The secret? Following the **** directions!
And when you take into account that the bulk of these quicky lube joints don't exactly employ NASA engineers, it all begs for problems that never existed before. Jeff's situation proves that if it proves anything.
These "engineers" all seem to be on a mission to get away from proven designs and materials that did nothing but work. In favor of one's that are problem prone. All to save a buck fifty per vehicle... If that.