Originally Posted By: Farmer
It's about customer convenience. That's why most of us are upset. I'm sure a lot of guys like me like to dump in exactly how much oil we need instead of eyeballing it or checking 3-5 times and adding over and over again. For example the Toyota 2GR-FE is a terrible engine to get an oil reading on especially after running. So most of us dump in the specified amount which is 6.4 quarts. It takes way too long to get a good reading on that engine.
I agree. After the first 2-3 oil changes, you will figure out exactly how much oil you need to get to full, so you should not have to check the dipstick (but you still will). If I know I need 4.5 qts to get to full, then I should be able to grab a 5 qt jug and pour out 4.5 qts, but without a sight window, you can do that accurately. Heck, I know my car takes 4 qts. I can pour out what I think is 4, check on the sight window easily and add more if I need too. Without a sight window, not as easy a thing to do.