I have an infiniti g35 coupe with the vq35 engine. officially it calls for a 5w30 with 10w30 and 10w40 ok if average driving temps are >= 0F (which they always will be). So, how do you feel about using a 0w30 (GC from autozone) in this car? any additional wear from using a 0w30 instead of a 5w30? miles will be approx 90% all highway. ps, went to autozone tonight, notice they seem to mix all the bottles of 0w30 usa with the 0w30 german, you gotta cherry pick.