There is still 1000 ppm in their oil. It was reduced but not taken out completely. The zinc was reduced mainly because of the O2 sensor. Lead blocks the cat. We had a lot of problems with American cars and the leaded gas in Europe.
Sent from John Found a post from Valvoline about their VR1...1300 ppm zinc, 1200 ppm phosphorus.
On Sep 25, 2012 9:57 AM, "Steve Chervinsky" < 63hemipolara@xxxxxxxxx> wrote:
Rotella used to but as of 2011 their zinc additives dissapeared due to
new diesel engines having cataletic converters.
Zinc actually clogs cats so it was eliminated from diesel oils as well.
Another thing to remember, diesel oils are formulated for low rpm
engines. If you ever wind out your classic then this is another thing
to consider.
Steve.
On Tue, Sep 25, 2012 at 9:08 AM, Gary H. <62to65mopar@xxxxxxxxxxx> wrote:
>
> I read somewhere that the answer is no. The diesel formulated oils like Rotella now have less of the required additives needed for our pushrod gas engines. Sorry, I can't find those references right now. Probably safer to buy the "enriched" oils advertised as made for pushrod engines or / and include an additive to reach the formulation specs cited by Gary P.
>
> Thanks,
> Gary H.
>
>> -------Original Message-------
>>
>> I've been using the Rotella, but I don't want to fool myself,
>> anyone know if that does really have enough to help out flat tappet cams?
>
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Steve
'63 Hemi Polara
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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!
1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!
1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!
1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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