[DeTomaso] Racing Oils - The Good, The Bad and The Slippery

[corey price]

Ken and Gary,

I'm with Ken- 200k on my Nissan Maxima and it runs superb, doesn't burn any oil, and I've been putting synthetic in it since it was nearly new 10 years ago.  Great car, BTW, and will be missed when I finally sell it.

Racing and other usage will probably be different, and maybe this is what Gary was hesitant about.




On Jul 3, 2011, at 2:56 PM, Ken Green wrote:

> Gary,
>  
>     I know there are always arguments for both sides of a question.  My opinion of synthetic oil is from over 30 years of using it in every vehicle I have owned.  The first use was in a Yamaha 1100.  I used Amsoil and changed it about every 10,000 miles versus 2,500.  After over 40,000 miles, it still did not use any oil and ran like new and looked new inside.
>  
>     I put 180,000 miles on a 98 Buick Regal GS changing the oil about every 15,000+ miles.  The engine got better mileage at 180,000 than new, and the heads etc. were never off, did have to replace the supercharger at about 120,000 mile.
>  
>     I understand that modern engines last a lot longer, but probably not with conventional oil changed at 15,000 miles.  My guess is that conventional oil oxidizes when it hits a hot surface, and creates sludge etc.  I don't think synthetics do that, and that is a big deal for engine life.
>  
>     Others may have different experience.
>  
> Ken
>  
> 
> --- On Sun, 7/3/11, GW <gow2 at rc-tech.net> wrote:
> 
> 
> From: GW <gow2 at rc-tech.net>
> Subject: Re: [DeTomaso] Racing Oils - The Good, The Bad and The Slippery
> To: "Will DeMelo" <wdemelo at cogeco.ca>
> Cc: arkoch at earthlink.net, detomaso at realbig.com
> Date: Sunday, July 3, 2011, 11:35 AM
> 
> 
> I have some view on synthetics. While synthetics are very slippery they 
> can have some pitfalls. I have heard of individuals who have switched to 
> pure synthetics and during very brief interruptions of pressures during 
> turns had main and rod bearing failures; It happened that quick. It is 
> so slick it does not stay on the surface as long as dino oils. I know of 
> one individual who vows never to run pure synthetics again although 
> blends may be ok.
> 
> A second problem came about when Shell made a pure synthetic oil for 
> aviation. They soon found engines were not making TBO (time between 
> overhaul). Propellers were also failing (propellers which change 
> position through oil. What they found was syntetic oil could not break 
> down sludge the way dino oils could. Shell was sued by several engine 
> makers and lost quite a bit over the deal. As far as I know there are no 
> pure synthetics for piston airplanes anymore. There are for turbines of 
> course but that is a different animal.
> 
> The problem with sludge in aviation came because avgas still has some 
> lead in it. The synthetic can not break it down. Now we don't run leaded 
> fuel in cars but there are still things in blowby synthetic still cannot 
> break down as well as dino oil.
> 
> Now they add additives for this, for that, to help break this down, to 
> help extend the viscosity range, but before you know it there more 
> additives and less and less oil.
> 
> For these reasons I avoid full synthetics.
> 
> Gary
> 
> 
> 
> Will DeMelo wrote:
>> For those that are running strokers, are the majority using synthetic or
>> dino oil? Can you just switch from one to another?
>> I've read a lot about oils and I'm still confused as to what to use.
>> Will
>> 
>> -----Original Message-----
>> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
>> Behalf Of arkoch at earthlink.net
>> Sent: Sunday, July 03, 2011 10:53 AM
>> To: detomaso at realbig.com
>> Subject: [DeTomaso] Racing Oils - The Good, The Bad and The Slippery
>> 
>> Given the interest of many folks on this forum on what oil to use in their
>> Pantera, the following article from the June issue of Engine Builder has an
>> insightful and informative article on "oils".  Go to the following web site
>> if you are interested in the subject:
>> 
>> http://www.enginebuildermag.com/Article/88994/racing_oils__the_good_the_bad_
>> and_the_slippery.aspx
>> 
>> Also, if you haven't subscribed to the free Engine Builder magazine, I would
>> highly recommend it. When you subscribe, they also send a weekly email that
>> covers various topics.
>> 
>> Additionally, the online site is very informative on many engine subjects.
>> The site provides access to prior magazine issues and articles.
>> 
>> Dick Koch - Atlanta
>> 
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> 
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