I see the oil discussion has generated 56 posts. True to form, oil discussions always generate a lot of posts.
Bob is the Oil Guy started as a small, simple forum to discuss oil. It has grown to a massive site with many, many active posters.
Why does this happen? I’d guess it is because it is the one job even the most limited car DIYer does (or did) on a regular basis. Our preferences are based on our experience with (usually) very limited knowledge of how oil is formulated, what those formulations mean and how it actually works.
We need a retired oil guy on this site!
I can’t argue against getting 400,000 miles using Valvoline dino oil - I won’t use that brand of oil (my bias) or 400K using Mobil 1. Both worked, right? Some believe the marketing information - some hype, some correct, some meaningless words. Some point to the science. Some buy solely on price - high or low!
It is the never-ending discussion…