When did this stuff go from utter [censored] to the high-water mark for conventional oils?
Has Pennzoil changed it up that
much over the last 10-12 yrs, or was it undeserved bad rep.? I'm sure I'm not the only one who heard horror stories. It was partially (or even directly) blamed for engines sludging up & catastrophic engine failures back in the day, rightfully so or not.
But then I read about recent Oil analysis with YB in newer motors saying it's good to 5-6k, whats really going on? Was it really improved that much?
And yes, I realize there's a former Pennzoil employee on this board. Maybe he can shed some light... or maybe that's why members on here are buying up YB in the first place? I haven't seen a frenzy for YB (or AutoRX) on other automotive forums.
Inquiring minds want to know... my case specifically would be a '93 Nissan KA24DE in Houston summer (6-month summer) @ 95*/Gridlock traffic daily to Dusty job-sites @ 3-4 OCIs, synthetic is not an option. Pretty much worst-case scenario
I'm thinking 10w30 or a thick 5w