I've seen as high as 30 on the trip-computer, granted for a few seconds
only, at highway speeds.
That 16 reading appears to have been the low reading of the day, on the
way home, I saw anywheres from 19-25. (FWIW, I'm running 33 PSI in all
four tires)
BTW, at 60 MPH, RPMs are rock steady at 2000, with the 3.92 rear I thought
I would have seen higher, but 2k is ok with me.
I'm gonna verify via my DAK seminar at the dealers tomorrow, if my truck
did indeed come from the factory with synthetic (I've seen posts saying
they come with tri-synthetic)...if so, in goes 10w-30 Royal Purple
Synthetic to handle the heat of summer driving.
On Mon, 21 May 2001, Jim Miller wrote:
> I hate to say this but my 2001 Grand Cherokee 4.7 Auto Gets 25 mpg by the
> overhead console at 60 mph if the road is level and no headwind. It has done this
> since day 1! Also put synthetic oil any time you choose. Many cars come with it
> from the factory. I put it in my 99 R/T at 500 miles and now at 30k there is no
> oil usage between changes even at 5k miles. Using Amsoil 0W30
>
>
> > > Just hit 500 miles on the way to work this morning. I have a 2001 DAK QC
> > > with 4.7/AWD/Auto/3.92/Limited Slip.
> > >
> > > Right at the 500 mile mark, computer showed AVG ECO of 14.9 MPG, current
> > > MPG of 16 while driving at 60 MPH on the highway.
> > >
> > > I did hit AVG ECO of 15.1 earlier this weekend.
> > >
> > >
> > > First oil change will be around 800 miles, keeping to dino oil, no
> > > synthetics yet but I do have a new DAK Owner Seminar at the dealership
> > > Wednesday night, gonna ask their opinion on putting in synthetic 10w-30
> > > for summer driving, at the 800 mile mark)
> > >
> >
>
>
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