Wonder if this is "abnormal"...see most comments here and elsewhere to much higher numbers, usually in the 3.0-4.0 range, it seems to me. 2018 SV Leaf; I've had it about 2 months. Record data about every 300 miles, and according to car, it got 3.0, 3.0, 2.9, but my meter on the plug says 2.25...