[Healeys] FW: Oil again

Sat Jun 20 09:21:23 MDT 2015

Greg, I don't think the brand matters much. They all have to meet the API specification. I think all the rest is marketing. 

From: glemon at neb.rr.com
To: ynotink at msn.com; healeys at autox.team.net
Subject: Re: [Healeys] FW:  Oil again
Date: Sat, 20 Jun 2015 01:02:40 -0500

Thank you Bill, although it doesn't tell me which brand to pick, your clear 
explanation of the oil codes and changes in formulation give a very good 
background for someone trying to muddle through the oil choice issues classic 
car drivers face these days, and understand why oil choice/availability had 
become a significant issue.

Greg Lemon

From: WILLIAM B LAWRENCE 
Sent: Thursday, June 18, 2015 6:58 PM
To: healeys at autox.team.net 
Subject: [Healeys] FW: Oil again

From: ynotink at msn.com
To: michael.oritt at gmail.com
Subject: 
RE: [Healeys] Oil again
Date: Thu, 18 Jun 2015 03:08:45 +0000

I see I'm late to the party on this topic. I was up in the Rocky 
Mountains participating in the Glenwood Springs Rallye when it started and 
frankly I wish I still were. However, at the risk of being called ignorant, 
uninformed, commie pinko or whatever I have a little information that may be of 
help in sorting out the oil confusion.  

Engine oil comes in generations as defined by the additive packages which 
are blended in to tailor them for specific purposes. These generations can be 
traced by the API codes which are located on the container. 

The API code is two letters found on the label. The first letter is either a C, which denotes the oil is 
intended for use in a compression ignition engine, or an S which denotes it is 
intended for use in a spark ignition engine.

The second letter denotes the type of use intended and follows the 
development of the internal combustion engine from the most primitive (A) to the 
most sophisticated (I think they are at O Now). protective amounts of zinc were 
dropped from the additive package at SM. Any oil before that, or say from SD 
through SL, still contains zinc.

It may be true that zinc is not necessary for engines after the camshaft 
break-in, but I prefer to be cautious on that score so I look for oil that is SL 
or earlier. I'll let the more informed and adventurous members conduct that 
experiment...

Some heavy duty oils such as Chevron Delo or Rotella are rated for both 
compression ignition and for spark ignition service and will show both a C and 
an S rating. In some cases those oils will still have an SM or later 
rating.

The one oil type I have found that is reliably rated below SM is four 
stroke motorcycle oil because motorcycles don't have catalysts. Typically it is 
rated SF or SG. Since the oil has no way of 
knowing it is being run in an automotive engine and my Healey doesn't know the 
oil it's spewing is meant for a motorcycle I have been running Castrol 4T in 
20W-50 grade quite happily.

As for the controversy part, if we start banning contentious topics we soon 
won't have anything to talk about like most modern college campuses.

Bill Lawrence
BN1 #554

From: michael.oritt at gmail.com
Date: Sat, 13 Jun 2015 06:14:11 -0400
To: 
javrugtman at htcnet.org
CC: healeys at autox.team.net
Subject: Re: [Healeys] 
Oil again

We ALWAYS talk about oil and 
no one seems to have the answer, so we simply keep talking about it. 

For a change let's talk about 
politics or religion, two topics which are susceptible to absolute rectitude. 
Many or most of us do not have the correct answers on either and someone 
here--perhaps an unknown lurker--may choose to now come forward with his or her 
enlightenment and reveal it to us.  

To mix a metaphor, I now 
listen with a jaundiced eye.

Best--Michael 
Oritt 

On Fri, Jun 12, 2015 at 7:45 PM, John Vrugtman <javrugtman at htcnet.org> wrote:

  politics and religion, like water and oil, don't mix.  On the other 
  hand, oil and Healeys mix very well.
JAV

  On 6/12/2015 7:16 PM, Richard Kahn wrote:

    I think topics like politics, religion, and oil should be 
    taboo. There is no best in any of these topics.
Rich Kahn

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