[Healeys] oil weight

[Michael Oritt]

I believe in an earlier message someone said that they use Rotella diesel
oil to get the desired zinc, etc. levels.  Rotella--and other similar HD
diesel lubes--have also had their zinc, etc. levels limited by EPA
standards and are not what they used to be.

Best--Michael Oritt

On Wed, Jun 10, 2015 at 4:08 PM, Albert Seminatore <alsemus1 at gmail.com>
wrote:

> The following is a response from Castrol regarding the best oil to use for
> classics.  For me this clarified a lot of what I heard but didn't know the
> reasons.  Hope this helps others.
>
>
>
> Classic cars with flat tappet cam engines represent a special case in
> regards to engine oil lubrication. These engines have valve train
> configurations that require elevated levels of ZDDP (zinc dialkyl
> dithiophosphate) anti-wear for proper protection of the flat tappet
> camshaft and its lifters. Insufficient concentration of ZDDP will lead to
> premature wear and failure of the camshaft and lifters. Current GF-4 and
> GF-5 fuel economy grade engine oils are designed for extended life of the
> catalytic convertors in modern passenger cars and have industry mandated
> limitations on the amount of sulfur and phosphorus within the oil.
>
>
>
> Only Castrol EDGE 5W-50 has a boosted level of ZDDP (1250 ppm) to help
> protect flat tappet cam engines in classic cars. This engine oil is a full
> synthetic, has excellent cold temperature properties, and has a high
> temperature viscosity (SAE 50) that is suitable for use in many classic car
> applications.
>
>
>
> Castrol EDGE 0W-30 oil is not recommended for use in a flat tappet cam
> engine.
>
>
>
> Castrol always recommends following the guidelines of the engine
> manufacturer for the recommended oil (i.e. SAE grade, API rating and
> manufacturer specifications) specific to your application or please consult
> your mechanic as to the suitability of the 5W-50 viscosity grade in your
> engine.
>
>
>
> Thank you again for contacting Castrol, we value your patronage!
>
>
> Castrol Consumer Relations
>
> --
> Albert Seminatore
> Mountain Falls, Pahrump, NV
> eMail:  alsemus1 at gmail.com
>
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation  $12.75
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
>
> Healeys at autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/michael.oritt@gmail.com
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/healeys/attachments/20150610/5268a382/attachment.html>