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Discussion Starter · #1 ·
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?
 

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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.
 

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Discussion Starter · #3 ·
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…
 

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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.
 

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2022 Tucson Luxury PHEV, Amazon Gray
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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.
 

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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.
 

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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.
 

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2022 Tucson Luxury PHEV, Amazon Gray
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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.
 

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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.
 
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