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Auto & Truck Oils, Lubes & Filters – Separating Technology from Hype

VW 505.01 Spec – Is Amsoil AFL “approved”?

AMSOIL AFL Bottle LabelI got an e-mail this week from a mobile lube company owner, asking about the AMSOIL European Car Formula 5W-40 product (“AFL” product code). 

I use Amsoil in my personal cars and sell quite a bit to customers. There seems to be a lot of discussion on several boards about VW 505.01 Approval list and the fact that Amsoil is not listed. I can understand that there could be many reasons for this, but…”

AMSOIL AFL Bottle Label

The AMSOIL “European Car Formula 5W-40 Motor Oil” (AFL) IS approved by VW and Mercedes, and DOES meet the 505.01 VW spec and 229.51 Mercedes Benz spec.  Some older lists (especially the original lists) do not include the AMSOIL product, because for several months they (Volkswagon) would not release either the spec or testing requirements, or identify a testing lab that could perform the tests – this is a common delay/ploy intended to benefit the original oil mf’r (such as Castrol) who worked with them to formulate the spec and product.  The only questions are the product code and the age of the cases you have in stock.  If they have the AFL product code and have been purchased since about February 2006 (very rough approximation), they will have the new label you see here which is the new formulation.  The old version of Amsoil’s AFL did not meet the new spec because of the tighter restrictions on Zinc content, which is a key component to most high-end-product wear-reduction additive packages: some exhaust design engineers are concerned about the possibility that certain forms of Zinc could possibly reduce the long term performance of extremely low emission catalytic converters.  It remains to be seen whether these concerns have any validating data, or if the concerns are related only to specific zinc compounds.  Meanwhile the oil companies are forced to use much higher cost wear-control additives if they want to meet the new specification. 

For those who aren’t aware, this oil is designed to meet all the European specs for both gasoline and DIESEL engine applications, including the latest ultra-clean-emissions diesels with diesel particulate filter (DPF) units.  Here are some performance details on the product: http://www.ultimatesyntheticoil.com/synthetic_engine_oil/AFL_meets_VW_505.01.htm

September 23, 2006 Posted by | Lubrication Oils & Fluids | , , , | Leave a comment