Exactly Mike... I owned a Belray Aero-1, oil distributership at that time,
and the Mobil fiasco put me out of business... Trying to get two hundred
hours between oil changes out of turbocharged engines was sheer folly.

Denny

"Michael Isaksen" wrote in message
...
It is my recollection that the Mobil 1 Aero marketing catastrophe was
mainly due to owner/operators extending their oil change intervals per