[Ben]

I just drove my ‘22 PHEV on the highway for the first time and mileage was 9.6L/100 KM after about 150 KM driven. The advertised is about 6.7…. Only two things I can think of are:

1) I reset the mileage tracker while already on cruise on the highway, perhaps it stuck there for some reason?

2)The engine isn’t “broken in” although I’m at 3000 KM (some if that being pure EV)

Is anyone else experiencing this worse than advertised mileage on the highway or am I missing something?

 

[stargate125645]

I just drove my ‘22 PHEV on the highway for the first time and mileage was 9.6L/100 KM after about 150 KM driven. The advertised is about 6.7…. Only two things I can think of are:

1) I reset the mileage tracker while already on cruise on the highway, perhaps it stuck there for some reason?

2)The engine isn’t “broken in” although I’m at 3000 KM (some if that being pure EV)

Is anyone else experiencing this worse than advertised mileage on the highway or am I missing something?

How fast were you going on the highway? You will drop down into that range when going above 110kph from what I've seen on here.

There are a lot of threads on mileage for hybrids and PHEVs, so you might find info or additional help there, too.

 

[Ben]

How fast were you going on the highway? You will drop down into that range when going above 110kph from what I've seen on here.

There are a lot of threads on mileage for hybrids and PHEVs, so you might find info or additional help there, too.

Thanks - was going 115 KM/H.

seems very strange that mileage would be advertised on speeds less than that. 9.6 vs 6.7 is a big difference…

 

[stargate125645]

Thanks - was going 115 KM/H.

seems very strange that mileage would be advertised on speeds less than that. 9.6 vs 6.7 is a big difference…

People are also reporting significant improvements with time. Hopefully it improves for you! Note that Car and Driver gave the hybrid version 8.4L/100km going 120kph, so I would expect the PHEV to get worse mileage than that. Though, their cars were presumably not broken in, either. Also, at least here in the states, the EPA testing doesn't really give you an indication of mileage at highway speeds (well above 100kph), so I'm not sure if Canada is the same.

 

[PDS]

Winter tires? Are you AWD?

 

[Ben]

Not winter tires and yes AWD but it’s not activated during that type of driving.

 

[PDS]

I'm at around 16,000 km and just changed over to summer tires which has improved my mileage. I have a road trip of 360 km tomorrow and I'll report back what my l/100 km is.

 

[Ben]

Sounds good - thanks. Was shocked to see what it was. Again, maybe it’s too early in the engine’s lifespan, although whenever you talk to the mechanics they say - despite the fact that manual says it needs to be broken in - that it doesn’t need it…

oh well - I’ll hope it improves. I don’t do a ton of highway driving but still expect to see what’s advertised.

 

[stargate125645]

Sounds good - thanks. Was shocked to see what it was. Again, maybe it’s too early in the engine’s lifespan, although whenever you talk to the mechanics they say - despite the fact that manual says it needs to be broken in - that it doesn’t need it…

oh well - I’ll hope it improves. I don’t do a ton of highway driving but still expect to see what’s advertised.

FYI, AWD is always on a little bit in the Tucson according to the Kia Hyundai Channel YouTube people (a dealership), which is part of the reason for the worse mileage versus FWD. It's not like a truck where you have to engage it. Plus, the extra weight from the system.

 

[PDS]

Here is the update I said I would post. First off I have a PHEV Luxury AWD, got it in early November. I did a round trip from Kingston to Renfrew which is about 360 km. The first leg was 95.3 km and averaged 7.1 l/100 km travelled between 80-100 km/hr. The second leg was 97.6 km and averaged 6.4 l/100 km between 80 km and 110 km/hr. The third leg was from Renfrew back to Kingston 184.2 km and averaged 6.5 l/100 km between 80 and 100 km/hr. I set the car to Auto as I find it is more economical than HEV, so there was some electric usage, but primarily ICE.

 

[stargate125645]

Here is the update I said I would post. First off I have a PHEV Luxury AWD, got it in early November. I did a round trip from Kingston to Renfrew which is about 360 km. The first leg was 95.3 km and averaged 7.1 l/100 km travelled between 80-100 km/hr. The second leg was 97.6 km and averaged 6.4 l/100 km between 80 km and 110 km/hr. The third leg was from Renfrew back to Kingston 184.2 km and averaged 6.5 l/100 km between 80 and 100 km/hr. I set the car to Auto as I find it is more economical than HEV, so there was some electric usage, but primarily ICE.

Is that actual mileage operating in hybrid mode (i.e. no EV battery help), or does it include the EV range from the larger battery, too? If the latter, I find that a bit disappointing personally given your speeds were only 60ish mph, though maybe I shouldn't.

 

[Aphidman]

Here is the update I said I would post. First off I have a PHEV Luxury AWD, got it in early November. I did a round trip from Kingston to Renfrew which is about 360 km. The first leg was 95.3 km and averaged 7.1 l/100 km travelled between 80-100 km/hr. The second leg was 97.6 km and averaged 6.4 l/100 km between 80 km and 110 km/hr. The third leg was from Renfrew back to Kingston 184.2 km and averaged 6.5 l/100 km between 80 and 100 km/hr. I set the car to Auto as I find it is more economical than HEV, so there was some electric usage, but primarily ICE.

It is a few months since you made that post. Is this still typical of your highway fuel economy? Those numbers sound reasonably close to the official figure of 6.6 L/100km for the PHEV.

Also, what about highway range? When you start with a full battery and a full tank, how far can you go?

Thanks!

 

[PDS]

One of the odometers ion the car turns over at 10,000 km that one also measures the long-term average of fuel economy. I've since rolled that over twice. I don't make any special effort to increase my mileage, my job entails me to travel. My main intent in buying a PHEV was to save money over the long-term. I would say I do half highway driving and half city. Within the city I drive almost 100% electric. On the highway I drive in Auto mode until the electric is used up and then the car automatically switches to HEV. The first 10,000 km the average was 4.8 l/100 km. The most recent 10,000 came in at 4.7 l/100 km. So pretty average between the two. 4.7 l/100 km translates to about 60 mpg (imp). Overall, the purchase of the car fulfills what I purchased it for. Fully charged with a full tank of gas is about 560 -570 km

 

[Aphidman]

One of the odometers ion the car turns over at 10,000 km that one also measures the long-term average of fuel economy. I've since rolled that over twice. I don't make any special effort to increase my mileage, my job entails me to travel. My main intent in buying a PHEV was to save money over the long-term. I would say I do half highway driving and half city. Within the city I drive almost 100% electric. On the highway I drive in Auto mode until the electric is used up and then the car automatically switches to HEV. The first 10,000 km the average was 4.8 l/100 km. The most recent 10,000 came in at 4.7 l/100 km. So pretty average between the two. 4.7 l/100 km translates to about 60 mpg (imp). Overall, the purchase of the car fulfills what I purchased it for. Fully charged with a full tank of gas is about 560 -570 km

That’s pretty impressive. This is very useful information. I also, over the course of a year, drive about 50/50 city/highway, although little of that is work-related. Thank you!

 

[jwslam]

My main intent in buying a PHEV was to save money over the long-term. Fully charged with a full tank of gas is about 560 -570 km

Wow looks like those few litres makes a big difference... my HEV consistently can go 650+ on a tank...

Samantha (Hyundai Tucson) | Fuelly

 

[Aphidman]

Wow looks like those few litres makes a big difference... my HEV consistently can go 650+ on a tank...

Samantha (Hyundai Tucson) | Fuelly

Thanks. This is good to know. People talk so much about the electric range of the PHEV that the topic of overall range seems to get overlooked. Clearly the HEV has the edge in this respect.

I drive the Calgary-Regina and Calgary-Kelowna routes frequently. Looks like I will be able to do those with one fill-up during the trip, which is acceptable. Charging facilities are still mighty scarce in the emptiness of SE Alberta and SW Saskatchewan, which is why I didn't choose a pure EV.

 

[Alan Sh]

Wow looks like those few litres makes a big difference... my HEV consistently can go 650+ on a tank...

Samantha (Hyundai Tucson) | Fuelly

Very impressive and I don't know what you are doing to get that mileage out of a 52l tank. But do let us into the secret (I can get just over 500 miles and I fill it till the pump goes click each time).

Alan

 

[Aphidman]

Very impressive and I don't know what you are doing to get that mileage out of a 52l tank. But do let us into the secret (I can get just over 500 miles and I fill it till the pump goes click each time).

Alan

Perhaps there is a mix-up here between miles and kilometres?