#VacuumLine

TTAC commentator VolandoBajo writes:

Sajeev, my worthy and esteemed fellow Panther defender,

I acquired my ’97 Mercury Grand Marquis LS about six months ago and have enjoyed everything about it. I’m hoping to find a good source for a dual exhaust that doesn’t cost more than the book value of the car, and to convince my wife that the mileage increase will pay for the mod over time.

But my present problem is baseline fuel economy. I see repeated references to a 20 miles per gallon highway figure, but I can only manage 17 mpg at the best of times.

TTAC Commentator sundvl76 writes:

Sajeev,

Your post of 2 Mar 2011 was a great explanation regarding the cause of the “T” joint oil leak I’ve been experiencing. No one on any of the normal Ford sites has been able to pinpoint the problem, so I thank you for the information. (I’d discovered the source, but didn’t know the cause/fix until your post.) TTAC is now on my Favorites list!