From: David Cole (DavidCole@tk7.net)
Date: Sun Aug 10 2003 - 12:49:13 PDT
I was talking to a guy who has a Dodge Cummins turbo engine with 560K miles
on the original block and head. He bought it at 520K to pull his 5th wheel
trailer.
Dave
>>>>>>>>>>>>>>>>>>>>
On Sun, 10 Aug 2003 13:14:59 -0400, m35products <m35prod@optonline.net>
wrote:
> 160,000+ trouble-free miles on my Dodge/Cummins using Rotella 10-40.
> Nuff
> said. apb
> ----- Original Message ----- From: "Employee@MilVeh.com"
> <milveh@sbcglobal.net>
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Sent: Saturday, August 09, 2003 11:03 PM
> Subject: Re: [MV] oil pressure and oil for diesel
>
>
>> I have been advised never run 15-40 or 20-50 in a
>> diesel. You may be getting away with it, but you are
>> paying a hidden price according to this article:
>>
>> "Multi viscosity oils are one of the great
>> improvements in oils, but they should be chosen
>> wisely. Always use a multi grade with the narrowest
>> span of viscosity that is appropriate for the
>> temperatures you are going to encounter. In the winter
>> base your decision on the lowest temperature you will
>> encounter, in the summer, the highest temperature you
>> expect. The polymers can shear and burn forming
>> deposits that can cause ring sticking and other
>> problems. 10W-40 and 5W-30 require a lot of
>> polymers(synthetics excluded) to achieve that range.
>> This has caused problems in diesel engines, but fewer
>> polymers are better for all engines. The wide
>> viscosity range oils, in general, are more prone to
>> viscosity and thermal breakdown due to the high
>> polymer content. It is the oil that lubricates, not
>> the additives. Oils that can do their job with the
>> fewest additives are the best.
>>
>> Very few manufacturers recommend 10W-40 any more, and
>> some threaten to void warranties if it is used. It was
>> not included in this article for that reason. 20W-50
>> is the same 30 point spread, but because it starts
>> with a heavier base it requires less viscosity index
>> improvers (polymers) to do the job. AMSOIL can
>> formulate their 10W-30 and 15W-40 with no viscosity
>> index improvers but uses some in the 10W-40 and 5W-30.
>> Other multigrade synthetics may not use VI improvers
>> either. The full literature available from the oil
>> company should include this information. Follow your
>> manufacturer's recommendations as to which weights are
>> appropriate for your vehicle."
>>
>>
>> --- patrick jankowiak <eccm@swbell.net> wrote:
>> > Mine oil pressure holds 65 lbs at idle cold, and 50
>> > lbs at idle hot. I
>> > use 15W40, stock multifuel (fuel compensator
>> > bypassed) non-whistler
>> > turbo.
>> >
>> > I have seen pressures as low as 20 psi at idle on
>> > other trucks. I
>> > wonder what is exactly normal.
>> >
>> > Patrick
>> >
>> > "Employee@MilVeh.com" wrote:
>> > >
>> > > I can tell you what mine runs, it holds 30+ psi at
>> > > idle which is at 600-650 rpms with Shell's
>> > industrial
>> > > 30 wt.
>> > >
>> > > I am running stock a multi-fuel with a whistler
>> > turbo
>> > > and I love the engine. Although I was a little
>> > taken
>> > > back when a guy who owns a trucking company
>> > refered to
>> > > the engine as a "disposable" and "not worth
>> > > rebuilding." Sure a Cat or Cummins is a better
>> > > engine, but they are newer and cost a lot more
>> > too.
>> > > Considering the low price I paid for my truck,
>> > this
>> > > Continental runs like a champ and since I fixed
>> > the
>> > > fuel density compensator I have had zero problems
>> > with
>> > > it. Very happy with it and I get about 10 mpg.
>> > too.
>> > >
>> > > --- "Fred H. Schlesinger" <fred@schlesingers.net>
>> > > wrote:
>> > > > What is normal? Are the gauges in the truck
>> > pretty
>> > > > accurate?
>> > > >
>> > > >
>> > > >
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-- Dave
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