Mpg
Instructor
Joined: Jun 2014
Posts: 965
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From: az
@Striker223 I agree that his figures for driving around town seem normal, but I'm getting between 29-30MPG (UK gallons) driving my 2008 LS600hL on the motorway in normal mode with the radar cruise set to 70MPH and the air conditioning set to Auto, so @Newbie7777 's 20MPG for motorway driving does seem a bit low to me. My figures were based on long motorway journeys though - over 100 miles Manchester to M40 J11 last weekend, and about 350 miles the previous weekend Glasgow to the same destination, via Manchester again to break the journey. Actually I never reset it, so 29.3MPG includes all that and some city driving I've done in between as well.
If my math is correct your 29-30mpg becomes 23-24mpg in us terms. It takes a long drive at highway speeds to get the average mpg up that high. The last 1+ hour highway drive in our 600 was probably a year ago. If I remember correctly I do think it was around 24-25mpg.
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Joined: Nov 2023
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From: Oldham
Interesting. A UK imperial gallon is 20 percent more than a us gallon. I didn't know that.
If my math is correct your 29-30mpg becomes 23-24mpg in us terms. It takes a long drive at highway speeds to get the average mpg up that high. The last 1+ hour highway drive in our 600 was probably a year ago. If I remember correctly I do think it was around 24-25mpg.
If my math is correct your 29-30mpg becomes 23-24mpg in us terms. It takes a long drive at highway speeds to get the average mpg up that high. The last 1+ hour highway drive in our 600 was probably a year ago. If I remember correctly I do think it was around 24-25mpg.
I have only had car a few weeks so trying it out.
Today I drove in town and motorway in normal and not in eco mode and noticed in town the rev counter would stay at zero for longer. Also reset the average mpg from its usual 17.8 (not done this before) and was getting 27mpg on the motorway and 22 round town,, so that is better, so can eco mode make my mpg worse??
I think our gallon is 4.5 litres and US is 5.5 litres.
I
Pit Crew
Joined: Mar 2013
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From: Nevada
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From: Oldham
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From: Oldham
I know it a heavy car and V8, but 30mpg should be possible.
Will be driving in normal mode as opposed to eco and see how I get on
Lexus Champion
Joined: Oct 2019
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From: Ohio
You are getting normal numbers by the sound of it, if you want more you need a RWD car. An AWD super heavy hybrid is not the answer for high interstate mpg, it's zone of expertise is in the city and for smoothness in town
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From: Oldham
Lexus Champion
Joined: Oct 2019
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From: Ohio
Plus Lexus always envisioned the 600 as a 12 cylinder competitor with better city MPG, your MPG numbers back that up as you are very close to my interstate numbers and WAY higher for city where I get about 13....but for me I almost never drive city so I don't care/a hybrid is wasted on me.
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From: Oldham
5200+Lbs is a LOT of weight lol! It takes a decent amount of power to keep that rolling along/deal with any changes in elevation. A RWD car is 1000lb lighter and doesn't have AWD related drag
Plus Lexus always envisioned the 600 as a 12 cylinder competitor with better city MPG, your MPG numbers back that up as you are very close to my interstate numbers and WAY higher for city where I get about 13
Plus Lexus always envisioned the 600 as a 12 cylinder competitor with better city MPG, your MPG numbers back that up as you are very close to my interstate numbers and WAY higher for city where I get about 13
Thanks
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Joined: Nov 2023
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From: Oldham
5200+Lbs is a LOT of weight lol! It takes a decent amount of power to keep that rolling along/deal with any changes in elevation. A RWD car is 1000lb lighter and doesn't have AWD related drag.
Plus Lexus always envisioned the 600 as a 12 cylinder competitor with better city MPG, your MPG numbers back that up as you are very close to my interstate numbers and WAY higher for city where I get about 13....but for me I almost never drive city so I don't care/a hybrid is wasted on me.
Plus Lexus always envisioned the 600 as a 12 cylinder competitor with better city MPG, your MPG numbers back that up as you are very close to my interstate numbers and WAY higher for city where I get about 13....but for me I almost never drive city so I don't care/a hybrid is wasted on me.
