[NoVa-Corvairs] New Oil From Hemmings

[clshimp at q.com]

A. J.:  Over the years there has been so many articles and recommendations about the amount of zinc that you need for older cars with flat tappets like in the Corvair that I think we are all confused.  The Hemmings oil says it has 1,600 ppm of zinc which may not hurt your Corvair but, if I remember correctly, the SAE did a paper on this years ago and said 1,200 ppm was optimal.  Also you may not want 1,600 ppm in your engine during break-in or you may have problems seating your rings.  I believe Cal Clark has in his catalog to break in with non-detergent oil which I think it too far the other way.  I have read some papers that suggest 1,100 ppm is best for break-in.  I have been mixing new and old oil for break in for my last 3 engine rebuilds and have had no problems but I think the the Corvair valve spring pressures are low enough that you have a fair amount of lee way on break in.  Once broke in I use new oil with a ZDDP supplement to get me around the 1,200 ppm area. I do have the oil analyzed by a lab to make sure I am not too far off the mark.  Curt Shimp

----- Original Message -----
From: "A. J. Paluska, Jr" <ajjr13 at earthlink.net>
To: "Northern Va Corvair Club" <novacc-list at corvair.org>, "Northern Va Corvair Club" <novacc-list at corvair.org>
Sent: Monday, September 24, 2012 9:45:07 AM
Subject: [NoVa-Corvairs] New Oil From Hemmings

Hemmings introduces zinc-rich motor oil formulated specifically for classic cars
Written by Daniel Strohl 

http://blog.hemmings.com/index.php/2012/09/21/hemmings-introduces-zinc-rich-motor-oil-formulated-specifically-for-classic-cars/?refer=news

One of the biggest worries among car collectors today is what oil they should use in their cars. As the zinc and phosphorous content continues to drop in modern motor oils on the corner parts store shelves, the risk of damaging the engines in our collector cars continues to increase. The resulting wiped-out camshafts and other mayhem can cost a pretty penny, and even destroy irreplaceable pieces of history, which is why we at Hemmings decided to offer a new brand of motor oil formulated specifically for collector cars.

Since the lack of zinc in modern motor oils became a problem, we’ve seen all sorts of complicated responses; we’ve even heard of guys crushing up zinc tablets from their pharmacy and putting the zinc powder into their crankcases. The new Hemmings Motor News Motor Oil makes it simple to get the right oil for your classic car, with an SJ rating (meaning it offers more than 1,600 parts per million of zinc and more than 1,500 ppm of phosphorous) and with a formulation that is designed to work with both forced induction and naturally aspirated engines and with engines running on high octane and exotic fuels.

The oil comes in three weights – a synthetic blend 10W30, a full synthetic 15W50, and a synthetic blend 20W50. – and is sold by the case of six only through Hemmings Motor News. For more information, visit Hemmings.com/ClassicOil.




A. J.
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