I drive like old granny and I cannot beat 19 MPG in city. I understand highway would give me better mileage. If I want to drive in Sport+ then I have 17 MPG which is 5 below what Acura saying on the sticker. I am not complaining. I use 93 octane and I believe I use it over the winter time but in summer start using 87. Transmission is kind of jerky and slow on first 3 gears but then pretty peppy. After doing first 400 miles I see Oil Service reminder is in 90%.

 

You are not going to anywhere close to the estimates in Sport +. It's basically on boost all the time so it is guzzling fuel. Also, 19mpg in actual city driving is excellent in the RDX.

Why are you running 93? 91 is recommended and I get 26mpg with 87. I doubt would be any better with 91.

 

This is my 3rd full of tank with 93 and 550 miles so far so I am just testing types of fuel and I was just curious if get better fuel improve MPG - the verdict is - none. So my next refuel would be 87 from Costco since I don't see any fuel and engine improvements. 87 is not going to violate the warranty so probably stick with that one forever. Driving is pretty well so far, not counting jerky transmission on 1,2,3 gears - later seems to change gears smoothly. I dont know what to expect from this car based on many problems from this forum and facebook groups. Time will show but already made 3 service visits and 4th one in next month does not tell good fortune. I will see .....

 

Mine was jerky in 1-3 as well when it was new but that seems to be nearly gone at 2000 miles. It's not exactly Lexus smooth but it's good enough for me. Possibly some breakin involved.

My fuel economy has been excellent so really have no complaints there.

I don't go back to the dealer unless is a safety issue. I have them look at everything all in one shot at the next oil change. So far, none of mine have been severe enough to go - just the squeaky brakes (no fix anyway), creaking in the steering column, and front and rear suspension noise that is intermittent (unless it is consistent I am not making a separate trip). Annoying? Yes. Unacceptable in this price range? Yes. So I will report them and have them addressed but in my own time.

 

I should probably do the same thing just drop the car for whole day and let them fix all issues at one time. I wish I was like my wife - dont care about this - don't care about that. But it's hard to have that attitude when you spent more than 40K on a car that should be called "luxury car" and its not.

Thank you for all replies any way. We feel probably the same pain.

 

I'm actually taking it in earlier than I normally would for the issues I am having. For our other two cars we just wait until the first oil change to deal with it. The exception was the AWD Sienna - that one had more serious issues that went in earlier. Anyway, I have some days off in late-March so I'm just going to take it in at 3500miles. I started looking ahead for when the first oil change would be for my driving habits and it would have put me in the middle of a trip I have planned.

 

with colder temperature RDX fuel dropped to 16.5 in the city, their average mixed MPG is big BS like the Acura quality

 

In the winter, in colder climates ( I am from Northern Canada) they use a winter blend for gas, which usually decreases MPG a bit. And if you do some research, you will see that just because 1 uses a higher octane gas, that doesnt mean your going to get better gas mpg.

 

19 MPG is very good!! I work 3 miles from home and I get 11-13 MPG.

 

2020 ASPEC. comfort mode, all local: 15MPG; all highway: 27MPG; combined: 22MPG. I am concerned about the gas consumption at local, far away from that Acura claimed.

 

To be fair, Acura did not rate it - the EPA did. I have the SH-AWD w/Advance Package that is rated at 21 city / 27 hwy. IMO the city number should be 15-16 mpg. I can easily hit the highway number in sport or comfort though.

I blame Acura for the suspension noises, assembly quality, POS infotainment system, etc. but not the fuel economy.

 

I'm driving 2019 Advance AWD- I'm not delighted with the true MPG of the 4 cylinder, turbo & super charger combo. 91 octane is hard to find, so I run on 93 "premium" like I did when I had the 2014 RDX V6. While about 70% of my driving is local suburbia driving about 30% highway, I only get 20.5-21.0 MPG. Local driving only puts it at 19-20 MPG.

I'm a conservative driver & usually keep in Sport mode & rarely have a heavy foot. I turned off the start/stop mode. The rare occasions I'm solely on the highway for a long time I have seen high 20's MPG. 27-29, while engaging cruise control. Keep in mind a turbo will burn a great deal of fuel when its engaged, which is often. the harder its pushed the more gas is eaten. Acura did not go to a 4 cylinder from the V6 to save on gas. They did it for a sportier driving experience.

 

I'm getting the best mpg ever since I now have to work from home. Gas lasting 2 weeks.

 

Not surprising, considering the 4 cylinder they use is derived (detuned) from the engine in the Civic Type R. Not exactly an EPA darling that one.

 

Not sure how are you guys getting such low MPGs, must be the vehicle still on the break-in period.

I used to get low 20-21s MPGs when mine was around 100-3k miles. (FWD)

Now at 14k miles, I'm getting 24-25 MPG consistently, on mixed (60% hwy /40% city) "spirited" driving on 93

 

Modern engines have very little functional break in. Manufacturing tolerances and precision are such that new engines perform "as designed" almost immediately. I'm not a big believer in significantly less mpg on new engines. That thinking dates back to less sophisticated manufacturing times. I think driving style and conditions are the overwhelming reasons for real world mileage differences.
I'm currently driving 90% suburban 2/4 lanes with lots of traffic lights and stopping and starting. I'm getting around 18 in those conditions. I'm not thrilled with that, but a small T4 in a relatively heavy vehicle is not going to do well in that situation. Being on boost often kills mileage.
I really believe the current methodology for determining EPA ratings is very misleading compared to typical real world driving and needs to be fixed.