This Fully Synthetic oil has proper MB229.5 approval. This is a very stringent standard and only the true top of the range synthetic oils are good enough to meet this long drain Mercedes Benz standard.
At $8.50 a litre its a damn site cheaper than the other top of the range 229.5 approved oils such as Mobil1 0W40 $17.50/l and Shell Helix HX8 (apparently only UK sourced Castrol Edge 0W40 is approved not the cheaper version we get in Oz $16/l). This should give you an idea of the quality of this particular Penrite product.
This is the company it keeps…
http://bevo.mercedes-benz.com/bevolisten/229.5_de.html
Note that if its not on that list, then its NOT approved, simple as that. I say this because some oil manufacturers claim their product meets/exceeds 229.5 on the bottle, but for some reason they choose not to get it properly tested and approved by MB. Its not hard to work out why. The age old excuse was that it costs money to get it properly approved, but I reckon if Penrite can do it, then anyone can.
To compare what all the various Manufacturer/Institute Approval codes mean in terms of actual performance data, use the following tool.
http://origin-qps.onstreammedia.com/origin/lubrizol/Markets/…
MB229.5 (listed under Daimler) is one of the most demanding standards by far (in terms of actual engine protection, as opposed to the mutually exclusive environmental concerns).
This is a really good oil and I'd use it in a lot of modern cars. I use HPR 10 in my car, which isn't 229.5 approved but then again my car has done 300,000km's so it runs better on the slightly thicker oil :)