Hi all I'm from Sydney, Australia and this is my first post here. I drive Holden Commodore SV6 with 3.6L Direct Injection V6. I believe this is the same engine as in Chev Camaro V6 and Some cadillacs. It's LLT engine. I use car in congested traffic on weekdays (short trips) about take it out on weekend and flog it a bit. I never baby it and drive somewhat 'aggressive'. As you might know summers here are very hot and in winter temp never drops below O degrees Celsius. Recommended oil viscosity is 5w-30 as per car manual. Car's only done 15 000 km's and I used Shell Helix Ultra 5w-30 for my first service. What other oils would you recommend for my car ? Is Mobil 1 okay as I could get it for a decent price. What about Fuchs ?