Probably not. My SD is the same way, but the cigar hose is fuel return, so it does not factor in to any fuel quality issues.

__________________
Thanks,
Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi