Castrol 5000km Motor Oil

[Big Z]

I'm going with the 5,000 as most roads in T&T are very dusty especially during dry periods.

Seems you are driving on dirt and gravel roads then.

How does anybody feel about using NP oil, once it meets the manufacturer's standards it should work right?

API ratings are pretty basic, and mostly factor in the properties of the oil when new. I would not use an oil without an ACEA rating.
ACEA ratings are much better, and take into account the properties after use. As such, if the NP oil has an ACEA rating, it will inspire more confidence.

[Sundar]

http://www.munichmotorsport.com/wordpress/?page_id=416

BMW extended oil changes... Good times!

wooowww

[Sundar]

i've tried np 20w50, twas aite. switched to shell 10w40(grey gallon) works good. using in turbo+ N/A vehicles at home