whats your mpg on RX450h?
11-22-17, 09:42 AM
#1036
thats what I thought as well. But mpg did improve.
11-22-17, 10:18 AM
#1037
Here we go, for the the third tank in a row I am averaging 14 km/l (33 MPG).
Key factors to achieve this result:
1) break in completed (86000 miles)
2) no use of A/C except when *really* needed (the moonroof helps a lot)
2) no short trips (i.e. <1,5 miles) - walking is healty!
3) low resistance tyres (Continental e-Contact 18")
4) high octane fuel
5) mild temperatures (20-25 C)
Key factors to achieve this result:
1) break in completed (86000 miles)
2) no use of A/C except when *really* needed (the moonroof helps a lot)
2) no short trips (i.e. <1,5 miles) - walking is healty!
3) low resistance tyres (Continental e-Contact 18")
4) high octane fuel
5) mild temperatures (20-25 C)
1) 86,000 miles? Your car should get the same mileage at 20,000 miles as it does at 86,000.
4) High Octane Fuel - This is bs. It’s been proven over & over that normal octane ratings do not effect fuel mileage. It can effect how efficient the fuel is used, but that translates into power produced & The cleanliness of the burn inside the combustion chamber.
A side note about A/C: a car’s a/c does rob power from the engine. However, by rolling down windows at highway speeds, you create more aerodynamic drag & can sometimes decrease your fuel mileage. I have noticed that when it’s really hot here in TX, my A/C will eat the hybrid battery in no time if you aren’t moving/braking much. I don’t know if this is completely normal for this car as this is the 1st hybrid I’ve ever had. After one year of ownership, I can say the cost of buying the hybrid over the standard gasoline RX 350 has not paid off. That’s just one year & 15,000 miles on my RX 450h. I average mid twenties (23-25 mpg) & I have never been close to the sticker’s number of 30 mpg. It’s going on for repairs soon, so we’ll see if there is something wrong or if everything is normal.
11-22-17, 01:25 PM
#1038
Racer
I suppose if the battery is constantly losing a big chunk of its charge when stopped, or giving up a lot of it's attempted charge as heat instead of stored energy when on the go, that's going to place more demand on the charging system, which eventually comes from gasoline burning. As a side note, I recently put 3 tanks in a row as record high MPG after I moved to a new place (almost 32mpg), and that's on a 12V that is over 8 years old now. The cooler weather has now put a stop to new records for now though.
11-27-17, 10:20 AM
#1039
Instructor
we had a regular RX for a loaner, which Mrs. MellonC drove for a while. the MPG was dismal at 17mpg. Thus, the 22 mpg she got from our 450h was still an improvement......... at some point, however, the lead-footing has to stop
11-27-17, 10:25 AM
#1040
Instructor
did a recent round trip from Los Angeles to Las Vegas. On the way there, it was slow/stop and go traffic which netted about 25.1 mpg. On the way back, super early in the morning, my friend who drove the car, kept the cruise control at 77mph the whole time (exact avg speed was 73 mph including some local roads). The mpg came out to 23.5 over 260 miles.
11-27-17, 12:51 PM
#1041
Racer
11-28-17, 05:35 PM
#1042
We’ve just stopped for the night at 850 miles into our 1,300 mile North-South trek; and the ‘13 RXh is at 23.3 MPG for the last two days at the speed limit +- 5.
The car’s loaded to the gills - and has a large Thule on the roof.
It was about the same MPG on the last trip.
The car’s loaded to the gills - and has a large Thule on the roof.
It was about the same MPG on the last trip.
11-29-17, 05:03 AM
#1043
Lead Lap
Agreed. And when in high-speed congested traffic, in Sport mode, the agility and acceleration is quite satisfying.
In congested traffic, I use Sport; on long boring runs - economy; and most of the time = normal (I can’t tell any difference in fuel economy between the three settings when on a highway).
I’d love to read how a comparably-loaded RX350 does.
In congested traffic, I use Sport; on long boring runs - economy; and most of the time = normal (I can’t tell any difference in fuel economy between the three settings when on a highway).
I’d love to read how a comparably-loaded RX350 does.
11-29-17, 05:09 AM
#1044
Agreed. And when in high-speed congested traffic, in Sport mode, the agility and acceleration is quite satisfying.
In congested traffic, I use Sport; on long boring runs - economy; and most of the time = normal (I can’t tell any difference in fuel economy between the three settings when on a highway).
I’d love to read how a comparably-loaded RX350 does.
In congested traffic, I use Sport; on long boring runs - economy; and most of the time = normal (I can’t tell any difference in fuel economy between the three settings when on a highway).
I’d love to read how a comparably-loaded RX350 does.
11-30-17, 07:50 AM
#1045
Rookie
Join Date: Sep 2014
Location: Fallon, Nv
Posts: 84
Likes: 0
Received 0 Likes
on
0 Posts
I don't drive my wife's car too often, but when I do I ALWAYS put it on sport mode. So much more enjoyable. It seems like a dog when taking off in Eco mode and you keep having to give it more throttle to get it to move, especially since I'm used to my torque monster Cummins diesel Ram 2500. I wish there was a way to default it to that setting so I don't have to keep changing it from Eco mode. She just gets in and drives it no matter what mode it's in. Either way it is always around 30 mpg in combination city/highway driving.
12-02-17, 12:45 PM
#1046
Driver School Candidate
Join Date: Dec 2017
Location: California
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
My RX 450H has 36,000 miles. I was getting 28-29 mpg on the original Dunlop tires (set at 33 psi cold). Got new Michelin Defender tires about two weeks ago, same size as Dunlops and on door sticker, filled to 33 psi cold, and my mpg has dropped to about 25-26 mpg. Can't figure out why. Any advice would be appreciated.
12-03-17, 06:36 AM
#1047
Rookie
Join Date: Sep 2014
Location: Fallon, Nv
Posts: 84
Likes: 0
Received 0 Likes
on
0 Posts
My RX 450H has 36,000 miles. I was getting 28-29 mpg on the original Dunlop tires (set at 33 psi cold). Got new Michelin Defender tires about two weeks ago, same size as Dunlops and on door sticker, filled to 33 psi cold, and my mpg has dropped to about 25-26 mpg. Can't figure out why. Any advice would be appreciated.
12-03-17, 03:48 PM
#1048
My RX 450H has 36,000 miles. I was getting 28-29 mpg on the original Dunlop tires (set at 33 psi cold). Got new Michelin Defender tires about two weeks ago, same size as Dunlops and on door sticker, filled to 33 psi cold, and my mpg has dropped to about 25-26 mpg. Can't figure out why. Any advice would be appreciated.
12-15-17, 07:49 AM
#1049
Instructor
Tires are always low rolling resistance when they are close to bald. As such, new tires may knock off a couple of mpg's when new. Wait 6 months and let the edges of the tread soften up a bit.
----------------------
My latest MPG (in town, commuting by myself) has gone up a full 1 mpg to about 26.5 mpg. I have not had to use the A/C often but it wasn't cold enough to use the heat setting often either.
----------------------
My latest MPG (in town, commuting by myself) has gone up a full 1 mpg to about 26.5 mpg. I have not had to use the A/C often but it wasn't cold enough to use the heat setting often either.
02-28-18, 11:52 AM
#1050
Every modern engine is designed to be able to slightly retard the spark advance if it senses pinging due to lowered octane. If the engine is set for premium fuel, then it will achieve a bit more horsepower and economy on premium; it will still run happily on regular, just not be quite as good with the numbers.
On my 2010 RX450h I use nothing but regular, and engine is perfectly fine. Mileage is in the high-20s for both city and highway (once the engine is warmed up).
On my 2010 RX450h I use nothing but regular, and engine is perfectly fine. Mileage is in the high-20s for both city and highway (once the engine is warmed up).