[V8] Causes of Bad MPG?

[Buchholz, Steven]

Good call Ed!  I forgot all about that ... 

... another question ... what temp range is the engine coolant/oil running?  You might have an issue with either the coolant or oil thermostat (as I also suspect on #2).

Steve B
San José, CA (USA)
> 
> Temp sensor at the back of the passenger side head?
> 
> On 1/9/07, Jason Wilkerson <wilke_jb at yahoo.com> wrote:
> > My new v8q is getting really bad MPG - I replaced the o2 and that worked
> > on my last v8 - didn't here.  I'm thinking bad wire to the ECU? Bad
> > ground? Runs like a champ - just about 5 MPG less than my former v8q?
> > Same years so the running gear is the same.  ANY Ideas will be
> > entertained.