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Old 07-01-2005, 16:02   #1 (permalink)
Big Shoe
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Engine Sludge Problem / Synthetic Lubricant

I saw an article yesterday that talked about a sludge problem with
certain engines from a number of manufacturers, including VW,
Chrysler, Toyota and Saab. The article said that these engines tend
to form sludge no matter the driving conditions or maintenance. It
appears that they may have hot spots where oil is held long enough to
break down and plug passages, requiring replacement of the engine.

This is the strongest argument I have seen yet for using synthetic
oil. I have never used it in my vehicles, but am now seriously
thinking about it. Those of you using synthetic in your Explorers -
what viscosity do you use and how often do you change?
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Old 07-01-2005, 16:02   #2 (permalink)
Alan E. Seelbach
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Re: Engine Sludge Problem / Synthetic Lubricant


"Big Shoe" <right_old@mynet.com> wrote in message
news:70lac19uebumncgl5ecr1be8kdl70nviln@4ax.com...
>I saw an article yesterday that talked about a sludge problem with
> certain engines from a number of manufacturers, including VW,
> Chrysler, Toyota and Saab. The article said that these engines tend
> to form sludge no matter the driving conditions or maintenance. It
> appears that they may have hot spots where oil is held long enough to
> break down and plug passages, requiring replacement of the engine.
>
> This is the strongest argument I have seen yet for using synthetic
> oil. I have never used it in my vehicles, but am now seriously
> thinking about it. Those of you using synthetic in your Explorers -
> what viscosity do you use and how often do you change?


I use Amsoil 5W20. I change it every 7500 miles (about a half year for me).
I have absolutely no problems with this oil. Previous to Amsoil, I used
Mobil 1 and I probably still would, but they didn't offer the viscosity that
the 2002 - 2005 specs call for.

Al in Poughkeepsie


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Old 07-01-2005, 16:02   #3 (permalink)
Ed White
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Re: Engine Sludge Problem / Synthetic Lubricant

Mobil 1 0W20 lists the appropriate Ford specs for newer Fords that
specify 5w20 oil, so it is OK to use.

Ed

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Old 07-01-2005, 16:02   #4 (permalink)
Ed White
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Re: Engine Sludge Problem / Synthetic Lubricant

Mobil 1 0W20 lists the appropriate Ford specs for newer Fords that
specify 5w20 oil, so it is OK to use.

Ed

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Old 07-01-2005, 16:02   #5 (permalink)
ross via CarKB.com
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Re: Engine Sludge Problem / Synthetic Lubricant

Big Shoe wrote:
>I saw an article yesterday that talked about a sludge problem with
>certain engines from a number of manufacturers, including VW,
>Chrysler, Toyota and Saab. The article said that these engines tend
>to form sludge no matter the driving conditions or maintenance. It
>appears that they may have hot spots where oil is held long enough to
>break down and plug passages, requiring replacement of the engine.
>
>This is the strongest argument I have seen yet for using synthetic
>oil. I have never used it in my vehicles, but am now seriously
>thinking about it. Those of you using synthetic in your Explorers -
>what viscosity do you use and how often do you change?


Where was the article? I'd like to read it.

Been using Mobil1 since it came out ( over 10 years now???). Many engines,
including a BMW 735. I change at 8,000 no problems of any kind. I use 10-
30. Just went to the new 15,000 or one year stuff. I guess AMSoil has a 25,
000 or one year synthetic.

The true synthetics are Mobil1, AMSoil, Redline. The other synthetics are
apparently use grade 3 oil base stocks with a "hydro cracking process" - not
true grade 4 base stock synthetics.


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Old 07-01-2005, 20:01   #6 (permalink)
stevie
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Re: Engine Sludge Problem / Synthetic Lubricant

that article was in latest issue of Consumer Reports.
"ross via CarKB.com" <forum@CarKB.com> wrote in message
news:50AECDC979AE0@CarKB.com...
Big Shoe wrote:
>I saw an article yesterday that talked about a sludge problem with
>certain engines from a number of manufacturers, including VW,
>Chrysler, Toyota and Saab. The article said that these engines tend
>to form sludge no matter the driving conditions or maintenance. It
>appears that they may have hot spots where oil is held long enough to
>break down and plug passages, requiring replacement of the engine.
>
>This is the strongest argument I have seen yet for using synthetic
>oil. I have never used it in my vehicles, but am now seriously
>thinking about it. Those of you using synthetic in your Explorers -
>what viscosity do you use and how often do you change?


Where was the article? I'd like to read it.

Been using Mobil1 since it came out ( over 10 years now???). Many engines,
including a BMW 735. I change at 8,000 no problems of any kind. I use 10-
30. Just went to the new 15,000 or one year stuff. I guess AMSoil has a 25,
000 or one year synthetic.

The true synthetics are Mobil1, AMSoil, Redline. The other synthetics are
apparently use grade 3 oil base stocks with a "hydro cracking process" - not
true grade 4 base stock synthetics.


--
Message posted via http://www.carkb.com


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Old 07-02-2005, 20:01   #7 (permalink)
syclone
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Re: Engine Sludge Problem / Synthetic Lubricant

I've been using Mobil 1 since 1976. I've never had any failure related
to an engine since I started using it. My last car before I started
using Explorers was a 1994 Toyota Camry 4cyl. I sold it with 130,000
miles. It still didn't use any oil between changes. Oil changes being
somewhere between 5,000 and 7,500 miles. My first 2 Explorers were
leases. I used standard oil on them. My current explorer is a 2003.
I bought this one and have been using Mobil 1 from the beginning.

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Old 07-09-2005, 00:01   #8 (permalink)
Ed Mann
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Re: Engine Sludge Problem / Synthetic Lubricant

I use Mobil 1 10W-30 and a Wix filter every 5000 miles or so.

"Big Shoe" <right_old@mynet.com> wrote in message
news:70lac19uebumncgl5ecr1be8kdl70nviln@4ax.com...
> I saw an article yesterday that talked about a sludge problem with
> certain engines from a number of manufacturers, including VW,
> Chrysler, Toyota and Saab. The article said that these engines tend
> to form sludge no matter the driving conditions or maintenance. It
> appears that they may have hot spots where oil is held long enough to
> break down and plug passages, requiring replacement of the engine.
>
> This is the strongest argument I have seen yet for using synthetic
> oil. I have never used it in my vehicles, but am now seriously
> thinking about it. Those of you using synthetic in your Explorers -
> what viscosity do you use and how often do you change?



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Old 07-11-2005, 08:01   #9 (permalink)
Ed White
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Re: Engine Sludge Problem / Synthetic Lubricant

The Amsoil XL7500 product line is not a "true" synthetic. It is like
Castrol Syntec, a highly processed group 3 oil. But at least it is API
Certified.

Ed

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