Lower motor RPM’s, perhaps closer to the motor’s most efficient point on the RPM range. The only report I’ve seen from someone who’s actually done it said he gets up to 10% extra range in warm weather. Most people have said it won’t matter, but none of them were speaking from experience. I’m skeptical of the 10% figure, as that seems high to me, but I’ll know if there’s a difference. The Wh/mi from Davis to San Francisco is pretty consistent except on days with high wind, so I can say it helped if I make it to the charging stop in Richmond with more than 10% SoC.