[Ultralights]

Just an interesting little piece i found on the codes for Oil, what they mean and their uses.
http://www.motorcycleinfo.calsci.com/API.html

[Dazzler]

Thanks UL .. very interesting, although I notice it is copyright 2004 (so 7 years old)

Have a sneaking suspicion there are some new codes added now (PIP would know)

[Kamele0N]

Here you have better page   http://www.oilspecifications.org/

[Dazzler]

Here you have better page   http://www.oilspecifications.org/

Wow, you get a lot of choices when you look for alternatives 

Although, I'm guessing it is a USA website as we don't get some of those oils in OZ and Castrol doesn't get a mention (for example)