Well? I think they're pretty rare...
The only oil related failures I personally have been told of (an obviously we're not talkin' abuse here such as oil starvation, kooky additives, or decade-long OCIs) was the "Yellow Goose Oil incident."
In the Buffalo, NY area, there was a now defunct regional chain of convenience stores called 'Yellow Goose Markets' and gas stations that sold their own line of branded oil (probably never meeting the current specs, at least since the 60s [SB]). A bad batch of the oil roasted about half-a-dozen motors in the early 1990s I think. The oil was refined by a NYS refiner (that rhymes with "inferior"
), which had to pay for some rebuilt motors...
So, I guess I'm asking for anecdotal (story time) instances of actual engines seizing up, or suffering severe quantifiable damage, due to an oil not performing while within the prescribed drain interval and at the appropriate level.
Is there any reason for the paranoia? Is the oil base, weight (within reason), and brand really make any difference?
The only oil related failures I personally have been told of (an obviously we're not talkin' abuse here such as oil starvation, kooky additives, or decade-long OCIs) was the "Yellow Goose Oil incident."
In the Buffalo, NY area, there was a now defunct regional chain of convenience stores called 'Yellow Goose Markets' and gas stations that sold their own line of branded oil (probably never meeting the current specs, at least since the 60s [SB]). A bad batch of the oil roasted about half-a-dozen motors in the early 1990s I think. The oil was refined by a NYS refiner (that rhymes with "inferior"

So, I guess I'm asking for anecdotal (story time) instances of actual engines seizing up, or suffering severe quantifiable damage, due to an oil not performing while within the prescribed drain interval and at the appropriate level.
Is there any reason for the paranoia? Is the oil base, weight (within reason), and brand really make any difference?