17M, sure no problem! we can provide the gasket also but if you can get it please feel free to bring it din if you like. for the starex the RP 15w40 will be perfect. i don't suggest going much longer than 6-7k kms on a diesel engine even with full syn oil though.
for the trooper though, you need a 10w30 weight oil as per the manual
mazdamazda, i agree... the additive package in the oil is really what determines the resistance to braking down sa oil, also how it reacts againt extreme heat, etc.
wrcastro_ph, wohoo! i'm very happy you're having all positive results with the oil! ;D