MPG Issue
MPG Issue
Picked up a 08 LS460L with 94K. I'm notice I'm getting an average of 11MPG City which is horrible. I recently changed the air filter, but haven't changed the spark plugs yet. The tires are pretty much new and are inflated at 34,33,32,34. What possibly could be wrong. The 07 plugs can be changed later, but the 08 LS460 says 60K for the plug change. Do you think the plugs can be the issue, or Gas filter?
Any word?
Any word?
Thanks
Lexus Test Driver
Joined: Nov 2015
Posts: 1,302
Likes: 17
From: CA
Driving behavior will influence mileage more than anything else.
11 MPG is actually fairly normal if you give this boat hard acceleration at every stop light and stop sign.
Spark plugs and "tune ups" may impact it a few MPG, but your foot can sway it much further.
11 MPG is actually fairly normal if you give this boat hard acceleration at every stop light and stop sign.
Spark plugs and "tune ups" may impact it a few MPG, but your foot can sway it much further.
Lexus Test Driver
Joined: Nov 2015
Posts: 1,302
Likes: 17
From: CA
Well, "passive" is rather subjective. I get over 20 MPG in mixed driving and I drive "normally."
So maybe my "normal" is less than your "passive."
In any case, most of the gas we use is due to acceleration from a dead stop, meaning that aspect of driving, be it a lot of stops and starts or just "fast" starts will influence mileage.
So maybe my "normal" is less than your "passive."
In any case, most of the gas we use is due to acceleration from a dead stop, meaning that aspect of driving, be it a lot of stops and starts or just "fast" starts will influence mileage.
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Rookie
Joined: May 2009
Posts: 98
Likes: 5
From: NY
I see that you are from NYC as well as me. Your MPG is totally normal in NYC traffic. I'm constantly getting around 12MPG in the city and I don't drive aggressively at all. As soon as I go out of the city - highway MPG is about 24-25.
Pit Crew
Joined: Apr 2016
Posts: 175
Likes: 19
From: IL
On my 2013 SWB AWD, idling and/or stop and go driving dramatically reduces my MPG, no doubt about it. ECO mode does marginally better. In typically congested Chicago traffic, I average around 13-15 mpg per tank. If I happened to be driving downtown for an extended period and encountering gridlock, I'd be lucky if I got 11. On the highway or in suburban driving the vehicle shines, doing 18-23mpg easy. The best I ever reached on an extended road trip was 26mpg using cruise control at 72mph across flat terrain. Although the tech has yet to be perfected, I really think an LS primarily driven in urban environments would benefit greatly from an engine stop-start system. One feature I wish I had (if executed well)..
Instructor
Joined: Nov 2014
Posts: 758
Likes: 26
From: INACTIVE
The SWB should have come with the GS hybrid system not the portly 600hL set up; and then this problem would go bye-bye. A 386 lbs hit for economy vs a 1000 lbs hit for performance. Besides, I could stand a smaller trunk. If I had a car that got less than 15mpg and it wasn't an exotic it would be for sale (ebay/autotrader/craigs/word of mooth)
I drive very passive and my stop and go traffic consists of traffic lights not bumper to bumper traffic, and heavy idling. I don't drive with power mode on. There are a lot of hills here, not sure if that would impact things. I expect 16 mpg not 11-12. I always use premium fuel as well.
Last edited by nar8ta; Oct 7, 2016 at 10:41 AM.
Intermediate
Joined: Dec 2012
Posts: 422
Likes: 4
From: MN
books say 16/23 mpg est. A lot of hills do make a differece. My area is flat. the best I see on highway at 60mph is 33. the worst in downtown traffic is around low teen.
Gas price is low and drive to work for me is only 7 mins. I find it is much more fun to drive on power mode.
Gas price is low and drive to work for me is only 7 mins. I find it is much more fun to drive on power mode.
