James5

I ride strictly in sport mode. Anyone else do this? Has anyone gone full sport for a full tank and then gone full eco for a full tank and compared the difference in gas mileage? My GS has about 150 miles and I am averaging 16.7 mpg on Sport so far. My guess is that this number will actually go up once I get a couple thousand miles on it and the engine breaks in a bit but I 'd like to see some other 4GS owners weigh in.

yardie876

I'm hitting close to 13,000 miles, 3,000 of which I put on myself and I average between 16.5 and 18 in sport. I long to see over 300 miles a tank but couldn't bear driving in eco lol.

Malu59RT

No one getting close to the reported 28mpg?!?!

James5

I'd imagine that would have to be all eco, all highway.

1111GS

We were on a road trip. About 300 miles each way. Light or no traffic. I was driving from 70-85mph. Sometimes switched to S+ but Normal mode most of the time. Averaged at high 22s. Not that I'm complaining but that is far off the advertised 28mpg. Maybe if I had driven at 65mph or less.

ntocamping

Wow, that is pretty poor mileage. Was thinking that when the time came to replace my 08 550i it might be for the 4GS. Thought the v-6 would return better mileage. I can get 24-25+ on highway road trps going 75-85 with some bursts up to and over 100. All the BMW's I have owned have returned higher than advertised mileage which is nice as my 550i is rated at 22 on the highway. Does Lexus overstate mileage or does it come in pretty close. Love to hear others mileage numbers.

dseag2

I drive city every day, highway three days a week, and I alternate between Normal and Sport +. I have been consistently averaging 19.2 mpg, sometimes reaching 20mpg. I'm quite happy with the fuel consumption considering the size, weight and power of the car. I never use ECO. If I did, I might as well trade it for a Lincoln Town Car.

sarmyth

My mileage is similar, i typically drive in eco switching to sport+ for occasional fun with merging and corners and clock in at 19mpg. Nearly all city or expressway driving, not much highway.

hypnotika

I did a mini road trip with my f sport over the weekend and averaged almost 25 mpg in Normal mode. Drive was mostly highway with some local streets. Drove a cool 65-80 mph the entire way.

LuxoRocket

I do about 70% city and 30% highway on mostly flat terrain, and I'm averaging 19.7mpg. I stay in Sport+ most of the time.

Malu59RT

My 2006 GS430 with the V8 is averaging 20-21mpg in my daily commute (hwy/city mix). I'm not going to be happy if I get sub 20mpg in the V6, but looks like that's what everal here are getting...

Igor911

May I ask...what's the difference between ECO, Normal and Sport/Sport+ modes?

TopKnife

Just got my car for about a week and I cannot stand the Eco mode. It felt slower than my FJ cruiser. With S and S+ I've been averaging 16/17 mpg.

ntocamping

Wow, further posts that support petty poor gas mileage results out of the v-6. What a disappointment. I was hoping this car would be on my very short list of replacement cars with one of my criteria being better mpg than my v-8 360hp/360tq 550i. Now I don't know.

yardie876

ECO desensitizes the throttle where you need more input to get response and lowers a/c level. Sport adds increased throttle response and active downshifting, while sport+ adds tightened steering and suspension. I personally drive almost always in sport or sport+. I've driven in ECO no more than twice since I've gotten the car. This attests to why my mpg is so bad. I filled my tank today and my range was only 259.