They all do the same thing if you really get down to it basics. All depends
on how much you want to spend. Is there a big difference...yes, in between
"dino", synthetic blends, and synthetics - but they are ALL still derived
from petroleum - just depends on the grade of the base used.
- Bernd
-----Original Message-----
From: Steve Preston [mailto:steveophonic@yahoo.com]
Sent: Sunday, February 10, 2008 11:03 AM
To: dakota-truck@dakota-truck.net
Subject: Re: DML: RE: ...Mileage...and oil
I see that *everyone* is now carrying full synthetic
oil. I went to Wal-Mart to buy a jug of 5W30 Mobil 1
for the Dak,and noticed that their house brand had the
same API ratings and was also energy conserving,so I
bought that instead. Is there a big difference between
brands? I know I'm going to hear from the Amsoil and
(Royal Purple?) people,but I mean among
conventional,mass brands.
Thanks!
Steve P.
--- "Bernd D. Ratsch" <bernd@dodgetrucks.org> wrote:
>
> Ok....the old school oils are no longer recommended
> in these modern engines
> (at all). Main reason: bearing tolerances are down
> to .006" and oil quality
> (and viscosity) is critical. Use too thick of an
> oil and you can cause
> premature bearing damage. Using a thicker oil in
> the summer and a thinner
> oil in the winter used to be the norm - but not
> anymore.
>
> Mileage tests also need to be in a more controlled
> situation - comparing
> winter to summer mileage while using different oils
> isn't just
> weather/temperature dependent...too many variables
> to say that one oil is
> better than the other.
>
> - Bernd
>
> -----Original Message-----
> From: Barry Oliver
> [mailto:barrysuperhawk@insightbb.com]
> Sent: Sunday, February 10, 2008 12:45 AM
> To: dakota-truck@dakota-truck.net
> Subject: DML: ...Mileage...and oil
>
>
> 99; 318; 4x4; 130k; 13" WIDE BFG Mud tires; 75 mph
> highway cruise.
>
> with 15w50 oil in the summer average 17 mpg [5-8k on
> oil tests ok]
> with 10w30 oil in winter average 15 mpg [3-5k and
> oil is shot]
> With 5w40 oil in the winter, average 16.4 mpg [small
> sample, good for
> 5-6k miles]
>
> I intend to run more of the Shell Rotella 5w40, as
> it tests as good or
> better that the Mobil one, if a little less
> longevity.
>
> Mobil 1 10w30/40 Good for 3-5k miles before being
> totally used up,
> depending on driving.
> Mobil 1 15w50 Good for 5-8k miles and still has
> reasonable life left.
> Shell Rotella 5w40 Good for 5-6k miles, only tested
> twice, but it fits
> solidly between the 10w30/40 and the 15w50.
> Depending on how it tests
> in the warm, I may switch to this altogeather
> because the thinner oil
> seems to quicken throttle response just a tad.
>
> Side note, The benz runs 10k on 0w40 and seems to
> test ok, but I have
> only sampled at 5k [no change] and just now at 10k
> [test not back yet]
>
>
>
>
> Bernd D. Ratsch wrote:
> > Why not just run 5w20 or 5w30 Mobil-1....it isn't
> going to hurt anything
> and
> > helps out in the cold weather.
> >
> > - Bernd
> >
> > -----Original Message-----
> > From: "Digger"
> [mailto:dodgedakotaquadcab@yahoo.com]
> > Sent: Saturday, February 09, 2008 2:12 PM
> > To: dakota-truck@dakota-truck.net
> > Subject: Re: DML: is this the end of the
> Dakota?...Mileage
> >
> >
> > Ok Boys:
> >
> > 00' Dakota Quad Cab 4x4
> > 126,000 miles
> >
> > If weather is 45F or above,Hwy mpg is between
> 20.9-22.1(65-70 mpg)
> >
> > and thats with Mobil 1 10w30
> > --- Andy Levy <andy.levy@gmail.com> wrote:
>
>
>
>
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