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From: W Atkinson <Walter@advancedpilot.com>
Subject: Re: [LML] Re: Alternative Engines
X-Original-Date: Tue, 29 Mar 2005 20:33:09 -0600
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Craig:

I am very interested in your opinion on the following:

Would it be correct to assume that based on your experience, you would=20=

choose a straight 50 weight over Phillips 20W50 for a big bore TCM=20
engine run at above 85% power?

Walter


On Mar 29, 2005, at 8:19 PM, Craig Berland wrote:

"What is your understanding of the automotive experience with the
multi-viscosity oils ???=A0 Regards,=A0 George"
=A0
George, the multi-vis oils are/were a necessity for fuel economy=20
ratings and cold starts (below=A00 deg F).
They are not so good for WOT testing. All max load and valve train=20
tests were run on straight 30w oil.=A0 Oil consumption and engine=20
durability all improve with straight weight oil. I might add I have not=20=

seen tests run with the new synthetics such as Mobile 1. With that=20
said, I just put the new "Purple ??" synthetic oil in my new truck.=A0=20=

But my truck sees <10% power 90% of the time.=A0In 1987 I left GM=A0and=20=

started a company manufacturing aerospace parts. My wife calls it my=20
momentary loss of sanity.=A0 Oh, I do like the LS1 a lot...I just=20
finished a customized '72 Chevy truck with the LS1 and 4L60E=20
trans....very nice and very fast.=A0 My youngest son's project with dad.
Craig Berland



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Craig:


I am very interested in your opinion on the following:


Would it be correct to assume that based on your experience, you would
choose a straight 50 weight over Phillips 20W50 for a big bore TCM
engine run at above 85% power?


Walter



On Mar 29, 2005, at 8:19 PM, Craig Berland wrote:


<fontfamily><param>Times New Roman</param>"What is your understanding
of the automotive experience with the</fontfamily>

<fontfamily><param>Times New Roman</param>multi-viscosity oils ???=A0
Regards,=A0 George"</fontfamily>

=A0

<fontfamily><param>Times New Roman</param>George, the multi-vis oils
are/were a necessity for fuel economy ratings and cold starts (below=A00
deg F).</fontfamily>

<fontfamily><param>Times New Roman</param>They are not so good for WOT
testing. All max load and valve train tests were run on straight 30w
oil.=A0 Oil consumption and engine durability all improve with straight
weight oil. I might add I have not seen tests run with the new
synthetics such as Mobile 1. With that said, I just put the new
"Purple ??" synthetic oil in my new truck.=A0 But my truck sees <<10%
power 90% of the time.=A0In 1987 I left GM=A0and started a company
manufacturing aerospace parts. My wife calls it my momentary loss of
sanity.=A0 Oh, I do like the LS1 a lot...I just finished a customized
'72 Chevy truck with the LS1 and 4L60E trans....very nice and very
fast.=A0 My youngest son's project with dad.</fontfamily>

<fontfamily><param>Times New Roman</param>Craig Berland</fontfamily>




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