Terrible MPG LS 500: 15MPG???
09-19-18, 02:24 PM
#16
Driver School Candidate
Thread Starter
So I tried Shell 91 today and I am pleasantly surprised: getting 30.5 MPG on highway drive for 55 miles. It is better than my first highway drive three weeks ago when I just bought it. I was on cruise no Lane keep assist. I've got a feeling that Lane Keep Assist consumes much more gas. So looks like Chevron gas isn't good for Lexus.
09-19-18, 02:47 PM
#17
Lexus Champion
So I tried Shell 91 today and I am pleasantly surprised: getting 30.5 MPG on highway drive for 55 miles. It is better than my first highway drive three weeks ago when I just bought it. I was on cruise no Lane keep assist. I've got a feeling that Lane Keep Assist consumes much more gas. So looks like Chevron gas isn't good for Lexus.
I will say however, that there are good and bad Chevron stations (and I'm sure same with all brands) where I would see a dip in overall MPG if I filled there. I usually saw the drop from stations that were not part of the "Extra Mile" branded store system, I've noticed on multiple occasions that the unbranded Chevron units are refueled by unbranded tanker trucks, but the EM branded always have Chevron Branded Tankers, and while essentially all fuel is the same and it is the additives that make the difference, one does have to wonder if the unbranded stores are using lower grade fuels and slapping the Chevron name on it and maybe not including the additives.
Also the unbranded stations (at least around me) are the only ones that do not have different prices for Chevron Credit/Cash and third party credit. And several of them don't take the Chevron Credit Card, even though they carry the Chevron Logo.
09-19-18, 03:05 PM
#19
Lexus Champion
There isn't a Shell station anywhere around me, and I haven't used them in years.
Last edited by mjeds; 09-19-18 at 03:09 PM.
09-22-18, 07:29 PM
#20
Driver School Candidate
Thread Starter
160 miles later, 120 miles highway, 40 miles local/city, my total MPG is only 16.7. Mostly normal mode, gentle driving. Don't understand why it is so low for the local drive. In theory, it should be at least above 19mpg, right?
09-22-18, 08:35 PM
#21
18 to 19 MPG is what I get with Shell. It's not the gas, it's the AWD and a semi lead foot. That's about the same mileage that the previously leased RC F got.
09-22-18, 08:57 PM
#22
Lexus Champion
That’s what I get in my GS. Perhaps I’ve been conditioned by my GS, but given the fact that the LS is nearly 1000lbs more with over 100 additional horsepower makes me think the LS mileage isn’t so bad.
09-23-18, 04:34 AM
#23
Instructor
seems like the original poster has some options
you can continue to hope this changes, and nothing will
you can have buyers remorse and make yourself feel bad the expectations were not met day after day, making things even worst
Or you can put Shell 89 or 93 in the car,
and enjoy one of the most beautiful rides in the world
most relaxing
best executed or on par with the S class
feel good you can afford to buy the car and get it deep rooted that the extra $1000 of gas a year isn't going to change your life
you can continue to hope this changes, and nothing will
you can have buyers remorse and make yourself feel bad the expectations were not met day after day, making things even worst
Or you can put Shell 89 or 93 in the car,
and enjoy one of the most beautiful rides in the world
most relaxing
best executed or on par with the S class
feel good you can afford to buy the car and get it deep rooted that the extra $1000 of gas a year isn't going to change your life
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Budhah (11-11-19)
09-23-18, 07:22 AM
#24
Driver School Candidate
Thread Starter
In life, there are some people who share balanced view, facts and tips, and be helpful to others, and there are people who always sound a little sarcastic and judgemental, almost sounds like putting down people. Trying to discuss and understand why the MPG is not within the published figure has nothing to do with whether we can afford that gas or enjoy the car. Please contribute, not be sarcastic. The LS 500 is the best car Ive ever purchased, coming from Tesla and Mercedes-Benz. However, unless people say it is totally normal to have consistently below the low end of the published MPG, Lexus should look into it, owners should also look into it.
I thank those contributors who share this tips and experience. Your time and contribution are highly appreciated.
I thank those contributors who share this tips and experience. Your time and contribution are highly appreciated.
09-23-18, 08:19 AM
#25
Lexus Champion
Remember that the EPA ratings on the sticker are not a guarantee from Lexus. They are the results of the EPA designed test. Lexus ran the test and the window sticker displays the results. The test is known to have shortcomings. Those shortcomings are worse on turbocharged and hybrid systems and do a poor job of reflecting the real way these cars are used.
09-23-18, 11:24 AM
#26
It seems to be a common complaint that turbocharged engines have problems meeting the EPA ratings in normal driving, particularly in town. Just a little bit of aggressive driving will result in high fuel consumption when the turbo boost kicks in. This issue is not unique to the LS500.
09-23-18, 02:38 PM
#27
Instructor
glad your enjoying the car, its a great ride have fun with it and the 1 or 2 mpg city difference won't change anything
so enjoy the ride and have fun
so enjoy the ride and have fun
10-01-18, 02:33 AM
#29
In life, there are some people who share balanced view, facts and tips, and be helpful to others, and there are people who always sound a little sarcastic and judgemental, almost sounds like putting down people. Trying to discuss and understand why the MPG is not within the published figure has nothing to do with whether we can afford that gas or enjoy the car. Please contribute, not be sarcastic. The LS 500 is the best car Ive ever purchased, coming from Tesla and Mercedes-Benz. However, unless people say it is totally normal to have consistently below the low end of the published MPG, Lexus should look into it, owners should also look into it.
I thank those contributors who share this tips and experience. Your time and contribution are highly appreciated.
I thank those contributors who share this tips and experience. Your time and contribution are highly appreciated.
10-01-18, 09:10 AM
#30
Driver School Candidate
Thread Starter
Thank you for sharing your experience. Mine is back to 15-16mpg range again, 70% city. It has 4000 miles now, is it still considered break-in period? What can I do to improve?
Thank you!
Thank you!