duber3

Hi, I'm looking to buy a new IS300awd, 2018 or 2019, I did a lot of reading here and I saw that these cars are not really fuel efficiency,
especially in city, I do mostly highway, maybe 75/25 highway/city, on strictly highway, can these cars able to achieve more then 26mpg at normal speed like 70mph, I say a pic here on this forum someone who achieved 31mpg, I think it's pretty good but I only saw one post on this forum with that kind of mpg

thanks!

luiave

Simple answer is no.

wthrman2

Duber - I have the IS350 and I get on average 8 to 9L/100km on the highway (doing around 110km/h) versus around 10 to 11L/100km when doing a combo of city and country roads.

So if you convert that into MPG, that would be 26-29mpg on the highway at (doing around 65-70mpg) versus around 21-23mpg when doing the combo in town.

Keep in mind that if you are an aggressive driver, those numbers will not be met - I am a 80% reasonable and 20% aggressive.

Hope this helps...I will say that you should be more worried about the tire wear than fuel consumption

duber3

Thanks wthrman
I don't know in Ontario, but here in Quebec, the fuel is really pricey, especially the Shell Vpower, this is why I hesitate to buy the IS300awd
and I don't want the 300rwd Turbo, rwd are not the best in snow!
I'm aware about the tires wear
thanks!

NickCaesar

my 2015 is350 can get a 10L per 100km highway at around 125 km/hr

city more like 12ish,

bumper to bumper stuck in traffic goes up to 14ish

for a 300+ horsepower AWD sport sedan with like a 3800 pound curb weight it’s not to bad.

duber3

I think on paper the fuel economy of the 2015 and the 2019 is the same, but on real, is the 2019 better than the 2015??

TonyN

iTrader: (1)

I got the 4cyl turbo a d have averaged 29mpg for the last 24k miles, your awd will be worst

JNP1227

iTrader: (1)

I have a 2015 IS350 AWD with RR Tune and Cat-back exhaust and on my monthly trips from MA to PA which is 330 miles i average 27-28 MPG

jameshan

iTrader: (1)

I get 17 on city and like 24-27 on highway at best.

evident

Best I've ever done is 24mpg when doing 80% Hwy. 14 350 rwd. Usually I'm getting 22

E46CT

If you want highway, consider a Lexus hybrid. I was bumping over 90 (yes ninety) mpg today on my CT during my commute. gingerly cruisin' on highway, very slight downhill grade. every day i play a little game to see how much mpg i can get on a paticular commute. On a long highway trip though, normally, i realistically can do about 50-53 mpg.

you want vroom vroom its gonna cost you.

panda327

iTrader: (3)

I have a Lexus IS300 AWD, 100% city here in Vancouver I get 14L/100km. On the highway I can get it down to low 9s, but I super rarely ever go on highway. My tank lasts about a week daily driving and to fill up is reaching up to almost $100. Most likely not going to keep the car once the lease is up.

lexuscanuk

Almost $100 to fill up... dammm. Here in Ontario I am filling up with $80 premium and its hurting. Last tank I filled with cannotbementionedfluid to test and I am getting 10.3 L/100km (about 70% highway driving) which I usually do 11.1 on premium.
I usually need to fill up every 4-5 days.

panda327

iTrader: (3)

yeah, my chest clenches every time i step on the gas a bit harder. I can't even drive this car fast without feeling guilty. I had way more "fun" in my IS250. Vancouver city traffic just isn't suitable for this car.