Originally Posted by buster
I like the 0w30 ESP UOA the best.
I agree. And yet the specs for this oil aren't amazing; there are several oils with a "better" spec data sheet and better VOA #s.
Originally Posted by buster
Some of the best UOA's for the Subaru WRX are with the ESP 5w30.
This winter I will again use the ESP 0W30 and next spring/summer I will try the 5W30 for the first time.