[s-cars] Amsoil advice requested

[David Kase]

Right, the wide range additives are used in dino, not synthetic.  The 
synthetic oil is designed for a wide range and additives are not needed 
to accomplish this.  Racecars use straight weight oil because they run 
at one temp - HOT.  No need for cold weather characteristics.

Also, coking is basically fried oil.  This can indeed be more prevalent 
with an oil with more additives but it is also much more common with 
dino oil (vs. synthetic) or shutting down with a hot turbo. 

Interesting mix and results there.  Gotta love finding the right combo.

Dave Kase

brian hoeft wrote:

> basically, a term called 'coking' ,,im sure it has a bit to do with 
> some partied out racers in the glory days, but regardless, powdered 
> oil isnt what i want in my motor and is supposedly the result of a 
> wide viscosity range in motor oils.  i can recall reading it in one of 
> corky bells books and then went on researching through google to 
> verify truth and found many links.  this is why racecars run straight 
> oil values.  i wouldnt say anythings really wrong with wide spread 
> synthetics,, surely it has a lot to due with driving 
> habits/conditions/application but from what ive read, boosted and even 
> more so heavily boosted applications dont jive well with say, a 
> 0w/60.  and i should mention that my current blood consisting of 
> AMSoil diesel/marine 15/40 and a half a quart or so lucas stabilizer 
> has reduced consumption and has a cleaner dipstick than my typical 2k+ 
> miles later.
>  
> two more, //brian
>
>  
> On 9/13/06, *David Kase* <davekase at pdqlocks.com 
> <mailto:davekase at pdqlocks.com>> wrote:
>
>     What is it that you have learned?  What's wrong with a wide range in a
>     synthetic?
>
>     Dave Kase
>     looking for your 2 cents...
>
>     brian hoeft wrote:
>
>     >with our cars being boosted and typically more than when originally
>     >purchased,, a narrow range is best from what ive learned.   i
>     used to be big
>     >on the castrol 0/60, but that wide spread isnt optimal in a
>     heavily boosted
>     >car, so now my pendulum has swung towards narrow weight ranges.
>     >
>     >2 cents later and im out, //brian
>     >
>     >
>     >
>     >
>
>

-- 
David Kase
Engineering Manager
PDQ Industries
717-656-4281
717-656-8749 (f)
www.pdqlocks.com