Hi, I am David and I like to drive Colin McRae style. I used to do amateur karting and I am fan of rally and hillclimbs. Who would resist mountain roads of Austria and drive FRC (Family Racing Cup) style. My question is...so far I've used on my Skoda Fabia Liqui Moly 5W30. I push it hard and engine gets lots of abuse. I am an engineering so don't worry about proper car maintenance. I never put turkey in cold oven ;-) I recently purchased Skoda Octavia II 2.0TDi 103kW with DPF...VW 505.01 norm if I am not mistaken. I did some research and found out that ester based oils take more abuse than "normal" oils. I wonder if anyone uses Motul 300V 5W30 in VAG diesel engines? I didn't find any specification on Motul webpage. I found in some forums that some guys use above by mentioned oil on race track days and also on daily use. My question is - should I stick with decent oil from Motorex or Liqui Moly and change it after 5000km (instead of 15000km - so far my oil change was at 10000km) or is it worthy to invest in racing oil? Suggestion appreciated. My objective is to reduce wear of engine and improve proper lubrication. My Fabia used to have 225k km on ODO meter...now is almost 300k and it is slowly dying after aggressive racing style driving.