OK, so we established that an older certification standard does not
guarantee a certain ppm of ZDDP. we've also noted that several
companies have marketed their oil for older classic vehicles with flat
lifters. Does ANY manufacturer list the level of ZDDP in their
"classic oil" on the bottle? The whole thing is starting to sound
like a big crap shoot. It makes me want to quit thinking with my dip
stick and blindly assume motor oil is motor oil.
-Trevor Jessie
On Fri, Jul 24, 2009 at 4:24 PM, brian S<bugeye15@hotmail.com> wrote:
> FWIW,
>
>
> While at Walmart today I checked out some of the oils on their shelf.
> The Rotella T was marked SM, Delvac and other diesel oils were marked
"clean
> diesel" and
> also had SM ratings.
> Walmart house brand Supertech has an oil 15w40 marked "Universal oil"
> and the SJ certification.
> Only the universal oil was marked SJ all the other Supertech oils were
marked
> SM.
> Wonder who makes it for them.
>
>
> Brian S.
> Bugeyeracer finally resto'ed!
>
>
>
>> Date: Thu, 23 Jul 2009 15:56:22 -0400
> Subject: Re: [Spridgets] oil for spridgets
>>
>> Check carefully, Jim. Rotella's formulation was changed last year.
>>
>> Send 3 oz. to a lab for a virgin oil analysis and see what comes back
>> under the columns labeled Zn and Ph.
>>
>> In fact, there are internet sites (like BITOG) where folks have posted
>> the lab reports of various oils they have submitted. But notice the date
>> of the posting. Oil companies tweek their formulations without changing
>> the name or the label. Only believe your own analysis or one that is
>> fairly recent. And don't assume it'll still be the same product next
>> year.
>>
>> JohnD
>>
>>
>> Date: Tue, 21 Jul 2009 17:28:45 -0500
>>
>> From: Jim Johnson <bmwwxman@gmail.com>
>>
>>
>> What Brad and Glen said.....
>>
>>
>>
>> Rotella-T is what the antique bike guys use too. I still have a few
>> bottles
>>
>> of ZDDP additive to use up but when they are gone its Rotella-T for the
>>
>> Midget and the old bikes.
>>
>>
>>
>> Cheers!!
>>
>> Jim
>>
>
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