[Aich Tew]

Ok, you're not going to ask, so I'll just tells ya.


Anti-wear additives such as zinc and phosphorus are limited by lawmakers because they damage catalytic converters on engines with high oil consumpion.

Kinda putting the cart before the horse, if you ask me. Any diesel grade oil, motorcycle oil or any oil marked 'Racing' does not have these limits applied to them.

Diesel grade oils tend to have more detergent additives in them, plus more acid neutralizers such as boron, calcium and magnesium to cope with the demads in such engines.