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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