I believe they do in the states and the UK; though not in Canada. :(
http://www.castrol.com/castrol/genericarticle.do?categoryId=82915470&contentId=7032644
http://tinyurl.com/36dkr9
> Just be aware that Castrol no longer makes oil with sufficient amount of
> ZDDP. I called them and asked.
> I had to start using Shell Rotella T, to have enough zinc in my oil, to keep
> it alive.
>
> On Sun, Aug 21, 2011 at 10:30 AM, Dave KK7SS <kk7ss at frontier.com> wrote:
>
>> I keep telling him, if it ain't broke - don't fix it!
>> And he tells me he wants only the best for his cars
>>
>> I tell him that I've used Castrol GTX and Champions (or NGKs')for over 50
>> years with no problems - but he firmly believes that "the latest is the
>> greatest!"
>>
>> Such is Youth :-)
>>
>> I'm sorta glad he's taking such good care of my car...
>> But I'm just afraid he'll kill it with kindness <G>
>>
>> --
>> Dave G KK7SS
>> Richland, WA
>>
>> '59 Morris Minor 1000 - working on it..
>> '65 Sprite - in process :(
>> '76 Midget - co-owned with #4 Son :)
>> '06 Honda Civic Hybrid
>>
>> ----- "Shop at \" Just Brits \"" <shop at justbrits.com> wrote:
>>
>>> << He has this love affair with Iridium plugs and Synthetic
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