Z Oil Change: Miles or Time?

Originally Posted by LinPark

I suppose I could take a sample of the oil from the 370Z and send it in without changing the oil. I've had this car for 2 years now - I changed the oil once with Nissan Ester at 1,100 miles and switched to Redline at 3,100 miles on 3/5/2011 - the car now has 5,900 miles but I haven't changed the Redline oil yet. Seems kinda sad to spend that much on oil and only use like 35% of its life. Guess I'll send it in to Blackstone Labs and ask them how it looks. I'll report back what they tell me.

Originally Posted by ZMan8

i did 5 qts and 1/8 and I also was dead center..hmmm interesting. I wonder if it has to do with the drain angles. Do you have just the front lifted. That could, I assume, leave some of the oil in the pan.