<VV> More Corvair Oil Confusion?

[John O'Shea]

To get a detailed answer to your question about C series oils please review 
the recent volumes of information about this on Virtual Vairs and Corvair 
Center.  In brief, CI-4 was recommended for Corvair engines by an oil 
industry expert because that designation has the levels of zinc and 
phosphorous needed to protect flat tappet engines.  Those levels have been 
reduced in most oils to protect the catalytic converters in newer engines 
that do not have flat tappets.

----- Original Message ----- 
From: "Tom Berg" <thesuperscribe at yahoo.com>
To: "Mark Durham" <62vair at gmail.com>; "Daniel Monasterio" 
<dmonasterio at hotmail.com>
Cc: "VirtualVairs" <virtualvairs at corvair.org>
Sent: Tuesday, March 08, 2011 3:21 AM
Subject: Re: <VV> More Corvair Oil Confusion?


C series oils are designed for compression-ignition (diesel) engines. Why 
would
you want to use them in a spark-ignition engine?


--Tom in Ohio




________________________________
From: Mark Durham <62vair at gmail.com>
To: Daniel Monasterio <dmonasterio at hotmail.com>
Cc: VirtualVairs <virtualvairs at corvair.org>
Sent: Mon, March 7, 2011 9:48:43 PM
Subject: Re: <VV> More Corvair Oil Confusion?

The CI-4 Plus is the reduced zddp version designed to meet the newer
diesel emissions requirements. If you look at the semi synthetic and
full synthetic versions, they still also say CI-4. Its been this way
for awhile. However they do advertise the petroleum oil as doing a
much better job at reducing wear in engines by an agressive additive
package. There are other additives that can also help reduce wear.
But, would I use the straight oil in my engine without a ZDDP
additive? No. But I would use the Full synthetic. It has the CI-4 and
is a full synthetic.Mark Durham

On Mon, Mar 7, 2011 at 4:18 PM, Daniel Monasterio
<dmonasterio at hotmail.com> wrote:
>
>
>
>
> According to Richard Widman's recomendations CI-4 is the right one but, 
> not the
>CI-4 Plus. Don´t remember the details.
>
> Daniel Monasterio
>
>> From: jco99 at cox.net
>> To: virtualvairs at corvair.org
>> Date: Mon, 7 Mar 2011 14:14:46 -0800
>> Subject: Re: <VV> More Corvair Oil Confusion?
>>
>> Just saw the new shipment of Shell Rotella T 15W-40 at Sam's Club. The 
>> old
>>Rotella T 15W-40 had CI-4 and CI-4 plus on the label.
>> The new Rotella T 15W-40 has CI-4 plus, but no CI-4 on the label. Is CI-4 
>> plus
>>an OK oil for Corvairs?
>> This was also posted to CorvairCenter.com
>>
>> Jack in Las Vegas where Spring has sprung!
>> Cherry trees are in blossom all over the place.
>>
>>
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