If 5-40 is your choice have a look also at the 5-40 Sport oil. Harder to find and specifically higher ester content (for whatever that's worth to you) with an HTHS of 4.0, full SAPS. Also available is the 0-40 Xmax, HTHS 3.6, increased ester content but not to the Sport level. 0 weight maybe useful due to your location, your call there. Dparm is right though, there are less expensive choices.