Final month we reported that Tesla posted increased EPA range figures for all of its fashions. The Model Y now has a 326-mile EPA vary score, which is ten miles greater than it had when it launched 6 months earlier. 

That prompted the youTube channel, What Drives You, to conduct a highway range test to see if the software program replace to extend effectivity and vary really had any affect. Coincidentally, they’d simply performed a 60mph vary take a look at on the automobile about two months earlier, so they’d good baseline knowledge to work off of. 

Sadly, as they might discover out, it is not very simple to breed the very same circumstances, and with out that, these vary exams will at all times furnish barely totally different outcomes. The colder temperatures and potential elevated headwinds robbed a few of the automobile effectivity, and the outcomes have been really worse than they have been for the earlier take a look at. 

We all know that right here at InsideEVs as a result of we frequently conduct EV vary exams, and have performed so with a lot of the in style EVs obtainable immediately. As a result of we all know it is inconceivable to regulate the entire variables that can affect the vary, we attempt to do these vary exams twice, with two totally different drivers, normally myself and Kyle Conner. We then common the outcomes of the 2 exams and use that as our closing vary score. 

Two months earlier What Drives You posted this 60mph vary take a look at earlier than the software program replace.

Though they used the identical course for the vary take a look at, they completed the second 60mph take a look at with a decrease effectivity determine. That is not the end result they’d been hoping for or anticipating and got here away with an effectivity score of 222.5 Wh/mi (4.49 mi/kWh – 13.81 kWh/100km) as in comparison with 216 Wh/mi (4.63 mi/kWh – 13.39 kWh/100km) that they noticed on the primary take a look at that was earlier than the replace. 

It is vital to notice that they solely drive the automotive for about 65 miles and use the effectivity score for that journey and extrapolate the entire vary primarily based on the obtainable capability of the battery pack. Utilizing that technique, they arrive at a 335-mile vary for the primary take a look at and 326-miles (coincidently the brand new EPA vary determine for the Mannequin Y) for the second take a look at after the replace. 

Kyle and I drive the automobiles till the state of cost is zero and the autos go into diminished energy mode; we do not extrapolate the vary primarily based on a visit that is lower than “full to empty”. That is a greater approach to vary take a look at EVs to make sure you’re actually documenting precisely how far they’ll go. Nonetheless, it is to not say that What Drives You’s exams aren’t value contemplating.

Tesla’s onboard effectivity gauge is fairly correct, extra so than many different EVs, so you possibly can depend on the Wh/mi and be assured that it is right. We suspect in the event that they did drive the autos all the way down to zero the outcomes can be similar to what the limited-drive outcomes confirmed. 

As we point out with all of our vary exams, none are excellent, and until you possibly can conduct the take a look at in completely managed circumstances, the outcomes shall be barely totally different each time. However that does not imply the outcomes aren’t value contemplating. That is simply one other knowledge level to think about, and price watching, in our opinion. 

So try the video and tell us what you assume within the remark part beneath.