[Healeys] Oil Additive Question

Bob Spidell bspidell at comcast.net
Thu Mar 27 06:56:35 MST 2008


Starting to sound like the unleaded gas controversy; no one knew at 
first and assumed the worst, but it ended up not being as much a problem 
as originally thought.

My take: use SL oil and/or a ZDDP additive until the results are 
conclusive, which will probably take a few years. 

bs


BJ8 Healeys wrote:
> I've only scanned over the Healey Marque article briefly, but my impression of 
> its conclusion is that modern oils are fine for our engines as is because oil 
> technology has replaced the ZDDP anti-wear additive with something just as good.  
> It mentioned a flat-tappet Nissan engine used in testing that did just fine on 
> the current oil formulations.  That would seem to refute earlier claims on the 
> list that old cams were destroyed quickly by using the modern oil without 
> ZDDP. 
> I don't believe I've ever seen an issue on the list where the more information we have on the subject, the more confusing it becomes. 
>  
> Steve Byers 
> HBJ8L/36666 
> BJ8 Registry 
> Havelock, NC  USA 
>  
>   
***************************************************************
Bob Spidell         San Jose, CA        bspidell at comcast.net
'67 Austin-Healey 3000             '56 Austin-Healey 100M
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