[drchris1]

I have been told by a trusted friend who had an Elise that we should use 5-50 in the summertime, 5-40 in the winter. I've been doing that for 3 years and 30,000 miles, car is doing great!

I use Castrol Syntec.

I do not track the car, by the way, just occasional autocross.

I hope this is helpful for you.