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Re: Motor Oil Question [LBC content]

To: "Jacques Le Clainche" <hobbycars@cox.net>
Subject: Re: Motor Oil Question [LBC content]
From: Lester <lewing@sport.rr.com>
Date: Mon, 2 Apr 2007 14:59:59 -0500
 From other groups I recall that Shell Rotella T (for truck) is the  
bee knees of course that is related to Turbo useage and keeping  
sludge buildup down in modern engines..

Lester


On Apr 2, 2007, at 2:46 PM, Glen Byrns wrote:

> Since I read about the accelerated destruction of flat-tappet cams  
> when used with the new low-ZDDP oils, it solidified my habit of  
> only using Castrol HD30wt.  I'd always avoided the multi-weights  
> because of the know tendency for the additives to add to 'coking'  
> problems on hot turbo bearings.  From what I've read, once the cam  
> is broken in with old fashioned ZDDP rich oils, it is less of a  
> risk to switch over to the modern oils.  But I'm just paranoid and  
> won't change.
>
> Glen
>>
>> I read that a non-API oil is usually so because it contains too  
>> much of the
>> additive ZDDP (Zinc Dialkyl Dithiophosphates) to be certified. I  
>> understand
>> the API limits the amount of ZDDP additive allowed in the oil  
>> because it
>> shortens the life of the catalytic converter. Now, most if not all  
>> of our
>> LBCs don't have catalytic converters, and the added Zinc in non- 
>> API oils is
>> supposed to reduce wear on the engine. So, I wonder if any lister is
>> presently using a non-API oil, synthetic or not, and what they think?
>>
>> Any oil expert on this list?
>>
>> JLC




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