Re: Motor Oil Question ??

Posted by Shovelman on December 29, 2006 at 14:37:57 from (68.191.57.27):

In Reply to: Re: Motor Oil Question ?? posted by mjbrown on December 29, 2006 at 13:53:56:

We use Rotella T (non synthetic) in all our engines. There has been a lot of discussion regarding changes in the additive packages of today's gas engine oils, particularly the additive ZDDP.

We are now using Rotella T 15-40 in our diesels, Rotella T 10-30 in our water-cooled gas engines and Rotella T SAE 30 in our older Detroit 71 series diesels and air cooled gas engines.

Here's some coorespondence I had with the people at Shell. It may be of some interest to you:

----- Original Message -----
From:
To:
Sent: Wednesday, December 20, 2006 10:22 AM
Subject: RE: Rotella Ask Our Expert: Lubricant Properties

> Scott,
>
> Either the Rotella T 10W-30 or 20W would work great in your gas engines.
> They're sometimes a little hard to find - we sell way more 15W-40! You
> may want to contact one of our distributors - they are listed under the
> "where to buy" section of www.rotella.com.
>
> Thanks again for your loyalty to our products!
>
> Sincerely,
> MaryCarol Boemmel
> Lubrication Engineer
> http://www.shell-lubricants.com
>
>
> -----Original Message-----
> From: Scott Goff [mailto:scottgoff277@earthlink.net]
> Sent: 19 December 2006 20:36
> To: askshell GSUSI-GSMF/5
> Cc: Scott Goff
> Subject: Re: Rotella Ask Our Expert: Lubricant Properties
>
>
> Dear MaryCarol,
>
> Thanks for the quick reply and for the detailed explanation as well. I
> agree that 15W-40 may be a bit heavy for our winters here in the
> Northeast,
> would the 10-30 grade or single viscosity (SAE 20) Rotella T be a better
>
> choice?
>
> Over the last 30+ years, I have rebuilt many engines and never had a
> cam/follower failure after rebuild.........until last year. The
> manufacturer (Edelbrock) stood behind it, but now I am wondering if it
> was
> in fact their problem. I think it may be time for us to run Rotella in
> all
> of our engines. Please let me know if 10-30 Rotella T would be a
> prudent
> choice for our gasoline engines.
>
> Thanks again for your time and consideration.
>
> Best regards,
> Scott Goff
>
>
>
>
>
>
> ----- Original Message -----
> From:
> To:
> Sent: Tuesday, December 19, 2006 3:30 PM
> Subject: RE: Rotella Ask Our Expert: Lubricant Properties
>
>
>> Dear Scott,
>>
>> Zinc levels are being lowered on almost all engine oils, but the heavy
>> duty diesel engine oils, such as the Rotella T, will continue to have
>> higher levels than the passenger car/gasoline engine oils. The
> Rotella
>> T 15W-40 meets API SL, SJ, SH and all previous specifications for
>> gasoline engines. The 15W-40 viscosity is heavier than what is
>> recommended for most gasoline engines, but if you feel comfortable
> with
>> it, then there should be no problem. Rotella T 15W-40 is recommended
>> for and used in many mixed fleet applications. It does have a higher
>> antiwear level to protect the heavy duty diesel engines and should
> give
>> you very good performance in this regard. Even though the amount of
> one
>> particular additive, the ZDDP, is being lowered, the amount of
>> protection is not changing. It is just being accomplished with
>> different additive chemistry. For those partial to zinc, the Rotella
> T
>> products still have the higher levels. Regarding you farm equipment,
> if
>> you have had good success with your current products, I would not
>> recommend changing.
>>
>> Thank you for using our products! If you have any further questions,
>> please call us at 800 231 6950.
>>
>>
>> Sincerely,
>> MaryCarol Boemmel
>> Lubrication Engineer
>> http://www.shell-lubricants.com
>>
>>
>> -----Original Message-----
>> From: scottgoff277@earthlink.net [mailto:scottgoff277@earthlink.net]
>> Sent: Sunday, December 17, 2006 7:09 PM
>> To: AskOurExpert@rotella.com
>> Subject: Rotella Ask Our Expert: Lubricant Properties
>>
>> ------------------------------------------------
>> ROTELLA.com E-mail Form
>> ------------------------------------------------
>> NAME Scott Goff
>> E-MAIL ADDRESS scottgoff277@earthlink.net
>> SUBJECT Lubricant Properties
>> COMMENTS
>> ----------------------------------------------
>> I am hearing a lot about changes being made to the anti wear packages
> in
>> lube oils for gasoline engines, especially regarding the reduction of
>> the
>> additive ZDDP.
>>
>> Claims are being made that the new (Energy Conserving) lube oils work
>> fine
>> in modern gasoline engines with roller tappets, but older engines with
>> flat
>> tappet camshafts are not getting the protection that they require.
>>
>> Another claim is that diesel lube oils - i.e. Rotella - still has the
>> additive ZDDP and will protect older gas engines equipped with flat
>> tappet
>> cams.
>>
>> Is there any credence to these claims? We use Rotella in all our
>> diesels,
>> would it be wise to run it in all our older gas engines as well?
>>
>> We have always used a high detergent SAE 30 in our farm's gasoline
>> tractors,
>> trucks and air cooled engines with excellent results. In light of all
>> the
>> concern regarding ZDDP, should we change to something different?
>>
>> Any help will be appreciated.
>>
>> Best regards,
>>
>> Scott Goff
>> Sunset Hollow Farm
>> Bakersville, CT
>>
>>

Replies:

• Re: Motor Oil Question ?? Stumpalump 15:08:48 12/29/06 (2)
  • Re: Motor Oil Question ?? B-maniac 21:28:42 12/29/06 (1)
    • Re: Motor Oil Question ?? Shovelman 07:53:12 12/31/06 (0)

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