AMSOIL Trashes Royal Purple, What about Chevron Delo 400?

[Gary - K7GLD]

In all the direct focus upon Moly, I have been negligent in making one thing perfectly clear - at least as far as I and many others see it:



REGARDLESS of what any maker puts into a dino-based oil, with current technology, it will NOT match some of the other clear advantages of a good synthetic like Amsoil, such as long-tern stability and resistance to effects of temperature extremes on BOTH ends of the scale, I have used, and been thoroughly happy with my use of Mobil 1 in my old classic '70 Caddy, my wife's previous Mazda, and my '98 Camaro SS. Shucks, I even got a couple of quarts of Amsoil from Wayne for our new Honda EU2000!



We all have reasons for what lubes we use - sometimes we're right, others maybe not - and few of us actually keep and operate these vehicles long enough to really know or benefit from the expected and hoped for results.



It seems much like religion - ya gotta have "faith" in what you choose!



And probably for MOST of us, we use what we do primarily for that "warm and fuzzy feeling" it gives us!

 

[WNowlan]

Moly in Engine Oils

The moly used in the newer diesel engine oils are not your grandfathers moly.

We are using Moly Dithiocarbamates (liquid), and not powdered moly sulfides.



Moly sulfides are great solid lubricants found in grease. They however will not work to good in an oil as stated previously in the discussion.



Oil is dirty from the plant regardless how clean the manufacturing process is. It will pickup particles. We measure these in a test called ISO Cleanliness. This reported in particle sizes ranging from <5 <10 <15 microns is size. The last is all particles present. This is mostly done in the hydraulic systems where you need super clean hydraulic oil. We will filter these systems to meet a specific ISO Cleanliness rating.



These particles are not a problem in engine oils until they reach clearance size. This is where they will barely fit between two metal surfaces and they wear a surface off. I am trying to not be too technical here.



We use moly in dino oil for a variety of reasons today. It is an excellent antioxidant. It usually found in the 50-70 PPM when used for this. We are now seeing particulate traps on trucks like the 04. 5 and 05 engines. These require a different type of Antiwear system. Moly has been proven to provide these charateristics without hurting the catalyst. It can be seen upto 500 PPM when used for this purpose. The traditional zinc clogs up the cats.



Remeber, The Engine Oil Companies and Additive Partners spend millions to find a balanced formula. You cannot make a judgement of an oils worth on a single bench test like 4-ball wear.



Me, I run a 5W-40 semi-synthetic. Brand is the company I work for. Change interval 10,000.



Warren

"CLS" Certified Lubrication Engineer.