lol! You think everyone that drives a certain same model car, all get the same gas mileage? What's you KCLV at right now on your GS350?

 

Depends on the city and definitely not possible in LA even if u cut off or right foot, unless u do engine swap with a Prius.

 

I do not believe it.

You'd have to be doing a lot of coasting or driving ever-so-gently downhill with no stop-n-go for less than a mile to get 24-26 mpg. I just do not think it's possible to get 24-26 mpg consistently when driving 100% in-town and no highway driving.

I recommend that you contact Lexus to volunteer driving their vehicles for EPA fuel mileage ratings. You're beating Lexus' city mpg rating by a whopping 25%!

 

Just took a weekend road trip to my cabin and tried to see how high I could get mine driving more gently than I normally do and I actually got 28.9 mpg in my 16 AWD, easily the best I’ve gotten in this car, accelerating gently up to speed is key, 65 mph seems to be the cars sweet spot. Stepping on it from a stop even without flooring it makes it go down so much. It’s tough to drive and not punch it once in a while though also if you sit around in your car idling a lot that will kill your mpg as well

 

19 city - 26 highway is the car's EPA fuel mileage rating. Getting 28.9 mpg with gentle driving and mostly at the highway 'sweet spot' speed of 65 mph is certainly conceivable. It is totally inconceivable that 24-26 mpg is achieved with 100% all in-town driving and no highway driving as ECL claims.

 

So with 19 being the City ratings we have some here saying they get only 12. That's -7mpg less than the estimate. So one can be off -7 less of the estimate based on their driving. But..... no one could possibly be off + plus getting better than the estimate? At 19 est city +7 would be 26 city. Think about it guys.

Is why I asked if the thoughts here are that "everyone that drives a certain same model car, all get the same gas mileage"?

Is this incorrect?
https://www.fueleconomy.gov/feg/noframes/42128.shtml

Looks like if you live in Texas you get lower mpg.
https://www.fueleconomy.gov/feg/Find...c=mpg&id=34517

 

I understand where you're going with the comparison of - if minus', then why not plus. But, having owned a GS 350 for number of years and driven it the majority of time in typical city driving, I never got more than 18-19 mpg unless I had driven only a very short distance with a lot of coasting after filling-up, which was simply not a fair or accurate representation of the true mpg for city driving. Many times I only got about 15 mpg with city driving. I never got anywhere even remotely close to 24-26 mpg that has been claimed with 100% all in-town driving and no highway driving. I just do not see how that is possible even under the most favorable conditions and with the absolute lightest throttle pressure and slowest/longest acceleration factors.

I'd say the car's EPA rating for both city and highway - as well as for the combined figure - is fair and pretty much right on the money for the results an owner can expect. Any variance is not going to be much. You know full-well that all car makers want to achieve the very best fuel mileage rating possible under the strict (yet realistic) guidelines such fuel mileage tests must be made under.

 

Yes I understand your point too.

My guess would be the Lexus mpg rating was underestimated if anything as to not get a whole bunch of Owner/Customer under mpg complaints? But IDK?

An average is just that with numbers. There is always a plus/minus, and a high and low, where sometimes the highest high, and lowest low is thrown out to get a good average. The end result is comprised of some higher, some lower. Your example of yourself would be in the equation, but not the final average result, is all I'm saying. So City driving is normally short distance. So lets take your 19mpg and take my 10 miles = 33mpg City. I can drive Down Town Peachtree St Atlanta City and only catch one or 2 lights if I time them. There was still lots of flowing traffic, stop and go and ppl I has to pass to stay as constant as I could.

Me doing 40-50 mph. 10 miles, and I was almost where I was going. So my33 and your 19 Average to = 26mpg, would be a average for you and me. If we were in a best mileage contest you would have to hold up better than 19mpg. Then again now I would lose badly to the 450h! lol!

Here's my example.... again. I was on Peachtree St Down Town City of Atlanta.


Just to disclose, My car has a more free flow open flowing intake, and exhaust. Hotter Coils, and a Remapped ECU Tune, that is more dialed in for those changes. Not the total reason but still disclosing this. Do I get this all the time? Absolutely NOT. I was trying to baby the accelerator, stay constant on the gas, and cruise the 2 lights I hit. I was very deliberate to see how high I could get the mpg. By the same token I have tried on the highway to beat the Cruise control mpg, but..... I can never beat the CC in best Gas mileage.

 

I think if ur rolling 40-65 MPH flat with no uphill for a long distance without stop and go, then 30+ MPG is possible.

I can get 27 MPG on the way to work going 80 MPH about 80% of the trip with some traffic but it's a bit of going downhill but I lost it all again coming back home since it's going uphill + a slightly worse traffic in the afternoon.

 

My mileage from the last 6.5 years. The light blue bar on the right is todays trip. The dark blue bars are from November 2015 to today. 15.2 was my trip to H-E-B and back today . Overall it looks like about 23-24mpg. I’m thinking that 28.4 was on a road trip from Texas to Vegas.

 

I'm confused on a couple of points.

Your city trip was 10 minutes in elapsed time but you drove at a robust 40-50 mph in downtown Atlanta. That's not typical city driving.

Since we were discussing only the GS 350's city mpg, you driving at 40-50 mph is more like a slow (fuel efficient) highway driving speed, not the typical stop-'n-go city driving speed, so your 33 mpg is neither city, nor highway, nor combined, but instead a mixed bag that is really useless.

Additionally, averaging the car's EPA rated city mpg of 19 with your slow speed 33 mpg (achieved while driving at 40-50 mph) actually provides a meaningless 26 mpg average, because that 26 mpg average is combining the car's EPA city rated 19 mpg with your 'OJ Simpson slow-speed chase' highway speed getting 33 mpg.

 

No, that cruising range is how far u can go with the current fuel left in the tank.

 

@jkeller - I'd say your results are very typical of what GS 350 owners commonly achieve; 29 mpg highway, 19 mpg city and 23 mpg combined - with a variance for city mpg affected the most with frequently much lower mpg than the EPA rated 19 mpg as illustrated by your city drive averaging only 15.2 mpg. This coincides with the OP of this thread getting about 12-15 MPG'.

I saw an almost identical fuel consumption with my GS 350.

 

Got it. Thanks!

 

My road trips to Vegas are, cruise set at 85mph from San Antonio to El Paso\ 600 miles, speed limit 80mph/. Cruise set to 80mph El Paso to Las Vegas\650 miles, speed limit 75mph/. If my cruise was set at 60mph I would probably get low 30's mpg. A GS is a great long distance cruising car comfort-wise. So an overall mpg of 28 isn't too bad.