well people, im just about to roll over to what seems to be the ominous 63,000 mile mark. truck seems to be running fine. very little oil consumption. dont seem to get the mileage that i used to though. it seems that ive read in the past that the intake gasket can/might cause poor gas mileage. so my question is, how do i check? im thinking that a person sprays brake cleaner, or throttle body cleaner somewhere around somewhere, but im not sure where that "somewhere" is. and if its leaking, the engine revs, or sputters, again,not sure which.
can someone enlighten me? i did searches, and couldnt find anything, so hopefully, there will be pleanty of input for future vx'ers searching for the same answer.

as always, thanks in advance,

God bless us all,

David