Shell Rotella T is a line of heavy duty engine lubrication products produced by
Royal Dutch Shell. The line includes engine oils, gear oils and coolants. The
oil carries both the American Petroleum Institute (API) diesel "C" rating as
well as the API gasoline engine "S" rating. Ratings differ based on the oil.
Rotella oils like T3 15w-40 meets both the API CJ-4 and SM specifications, and
may be used in both gasoline and diesel engines. However, it is formulated
specifically for vehicles without catalytic converters, containing phosphorus
levels beyond the 600-800ppm range.[1] Therefore, Rotella is not recommended
for gasoline vehicles with catalytic converters due to the higher risk of
damaging these emission controls.[2] Newer formulations of Rotella T6 however
are API SM rated as safe for pre-2011 gasoline vehicles.
Shell is marketing their new CJ-4/SM oil as "Triple Protection," meaning it
provides enhanced qualities for engine wear, soot control and engine
cleanliness. Shell's Rotella website indicates that on-road testing confirms
the new Triple Protection technology produces better anti-wear characteristics
than their existing CI-4+ rated Rotella oil. This is achieved despite a lower
zinc and phosphorus additive level as called for by the API CJ-4 specification.
(The 15W-40 Rotella T with Triple Protection oil has approximately 1200 ppm of
zinc and 1100 ppm phosphorus at the time of manufacture.)
, though marketed as an engine oil for diesel trucks, Rotella T6 5w-40
synthetic oil has also found popularity with drivers and tuners of gasoline
powered vehicles that utilize turbocharging or other forms of forced induction.
Several owners of high performance model cars have adopted its use due to its
high heat tolerance and its resistance to shearing. Rotella T6 is a Non Energy
Conserving Oil, and does not meet GF-5 Oil specifications. When Rotella T6 was
revised for the API specification(for use in spark ignition engines), its Zinc
levels were effectively reduced. Higher(content) Zinc Additives(ZDDP) are
required for flat tappet engines and cartridge bearings, which In previous
formulations Rotella T6 had desirable levels of Zinc(ZDDP)
I guess it is saying we have to use a bit of additive to T6 to bring it up to
1500 ppm? Or, the Triple Protection Technology gives us the same anti-wear
characteristics?
Comments?
Bob Begani
-----Original Message-----
From: Tom Felts <tomfelts@windstream.net>
Sent: Monday, September 16, 2019 4:01 PM
To: P.M. Pollock <pollpete@ix.netcom.com>
Cc: Bob Begani <rfbegani@gmail.com>; Healeys <healeys@autox.team.net>
Subject: Re: [Healeys] Valvoline VR-1 20W-50 @ walmart.com
talked to them today--VR1 20w-50 has 1400PPM zinc.
tom
----- Original Message -----
From: P.M. Pollock <pollpete@ix.netcom.com>
To: Bob Begani <rfbegani@gmail.com>
Cc: Healeys <healeys@autox.team.net>
Sent: Mon, 16 Sep 2019 14:58:04 -0400 (EDT)
Subject: Re: [Healeys] Valvoline VR-1 20W-50 @ walmart.com
IIRC a couple of years ago diesel oils also went the reduced zinc route. You
can check zinc levels online from the oil's website - usually by downloading a
pdf.
What I settled on doing for our beloved '69 Ghia convertible and her Healey
consort (once I get him going, that is) is a zinc additive. My understanding is
too much zinc can also be a problem, so adjust the additive to the underlying
zinc in the oil you are using (you want about 1500ppm total).
Alternately, some folks might smuggle in VR-1.
Peter Pollock
BJ7
On 9/16/2019 11:24 AM, Bob Begani wrote:
> What about using Rotella as a substitute.
>
> Bob Begani
>
> Sent from my iPhone
>
>> On Sep 16, 2019, at 1:59 PM, P.M. Pollock <pollpete@ix.netcom.com> wrote:
>>
>> Banned here in the People's Republic of California about two months ago
>> (probably due to the high zinc). It must have been an administrative ruling
>> - it caught stores completely off -guard: one day they were selling it, the
>> next it was cleared from the shelves and in the back room not-for-sale.
>>
>>> On 9/13/2019 10:22 AM, Bob Spidell wrote:
>>> No, not ANOTHER discussion on the merits of any particular oil. I've used
>>> this for years with satisfactory results, and was looking to re-up my
>>> stash, but my usual source, RuralKing is now refusing to ship to California
>>> (their cust. serv. wouldn't say why, but they're a guns and ammo dealer and
>>> might be making a political statement as apparently no other states are
>>> being boycotted). Anyways, I found it at Walmart and they had a '2-pack'
>>> for $8.76 ($4.38/qt), which is about as good a price as you can
>>> get--'regular' price is over $7/qt--plus free shipping. I thought this
>>> might be a goof on their website, but I took a chance and ordered; and the
>>> email confirmation showed 24@$4.38 ea. Maybe they'll claim a screw-up, and
>>> try not to honor the order, but I thought I'd pass this 'deal' along:
>>>
>>> *https://tinyurl.com/y2e64xrg*
>>>
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