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Gas mileage...good-bad (The Mother thread)

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Old 02-25-10, 12:38 PM   #376
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I know that larger wheel / tire combos can effect mpg...is ur setup close to OEM diameter?
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Old 02-25-10, 03:18 PM   #377
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lol yea those were bigger than oem. man i really need 2 change my sig, rims r long gone, im running stockies, 16/225/60
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Old 02-25-10, 10:39 PM   #378
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Quote:
Originally Posted by Li Ls4 View Post
damn how do u guys get that high mpg. on a trip to six flags in jersey and back in my 94 i got 18mpg and thats the highest iv every gotten. on average i get around 14mpg with about half highway/city. but i do drive on the aggressive side tho lol. anything else to maintain other than spark plugs, air filter, oil? ohh idk if this would help but i did a muffler delete on the car also.

sry to thread jack and i feel like this has been covered b4 already lol

i know what you mean man..haha i have a 94 and get around the same mpg as you. idk why its not as high as everyone else..
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Old 02-26-10, 03:12 PM   #379
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Man you guys are getting awesome numbers for a big V8 car, surprising.
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Old 02-26-10, 03:54 PM   #380
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At this stage, our barge is hitting 24-25 all highway. Typical average is about 21 with a short mix of city driving. Wish ours had a bit longer legged gearing like the 98+ have.
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Old 02-26-10, 06:10 PM   #381
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Quote:
Originally Posted by RA40 View Post
At this stage, our barge is hitting 24-25 all highway. Typical average is about 21 with a short mix of city driving. Wish ours had a bit longer legged gearing like the 98+ have.
I've gotten 28-29mpg all highway on '95 and '96 LS400s, the key really is to drive slowly - like 55-60mph.
Of course, I get sick of that crap an hour into it and throw it up to 74mph and end up getting the 25mpg you mention.
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Old 03-01-10, 08:00 AM   #382
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Just did the same trip and only got 417 this time...
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Old 06-10-10, 04:39 PM   #383
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This last weekend I took my 98 LS with 158K miles to Michigan and back. Took 5 tanks of gas and mileage was:
29.1
29.2
27.2(included city driving while in Michigan)
32.0(wow)
28.9

The 32.0 tank was Michigan, Ohio, Kentucky, and Tennessee. 605 miles on one tank omg I didn't have to refuel until the second exit in Georgia. That's impressive.
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Old 06-10-10, 06:36 PM   #384
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Is everyone here running at least 91 octane?
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Old 06-10-10, 06:46 PM   #385
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Quote:
Originally Posted by Li Ls4 View Post
damn how do u guys get that high mpg. on a trip to six flags in jersey and back in my 94 i got 18mpg and thats the highest iv every gotten. on average i get around 14mpg with about half highway/city. but i do drive on the aggressive side tho lol. anything else to maintain other than spark plugs, air filter, oil? ohh idk if this would help but i did a muffler delete on the car also.

sry to thread jack and i feel like this has been covered b4 already lol
I'D JUST CHANGED MY ROTORS/DISTRIBUTOR CAPS AND FOUND ONE OF THE ROTORS CRACKED.I PUT IRIDIUM SPARK PLUGS AND THE AIR INTAKE FILTER HAS TO BE IN GOOD CONDITON ALWAYS. THE CAR DIDN'T HAVE NO PROBLEMS IN MISFIRING OR SPUTTERING. BUT THE MILEAGE IS IN THE 13.0 TO 14.8MPG'S IN THE CITY, NO HWY YET. I JUST FILLED THE TANK TO SEE IF IT IMPROVED, OH BY THE WAY IS A LS400 1990 WITH 85,000 MILES, INCREDIBLE BUT THAT LOW IN MILEAGE THE ROTOR WAS CRACKED. GOOD LUCK
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Old 06-11-10, 04:07 PM   #386
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Is everyone here running at least 91 octane?
Your engine runs suboptimal at anything less so I hope so. I usually go for Shell, Chevron, or Sunoco 93. I think all the changes they made between 95-97 greatly improved gas mileage. My 98 gets better mileage than my 95 Camry V6 XLE did (around 29-30mpg). Advantage to the Camry for doing it on 87 octane. The Camry went 278,000 miles before I reluctantly sold her ...still running great. I expect the Lexus to do the same or more.
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Old 07-02-10, 03:29 PM   #387
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gas mileage?? im averaging 20.5 mpg or 11.5 L/100 on my 1992 ls400, im not really driving with a light foot so it could be better but how does this compare to other ls400's of similar year?
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Old 07-02-10, 03:43 PM   #388
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Its similar.
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Old 07-02-10, 03:46 PM   #389
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Do a "gas milage" or "mpg" search. Lots of threads where people have posted what they get.

Here's one recent example:

http://www.clublexus.com/forums/ls40...-right-on.html
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Old 01-24-11, 09:35 PM   #390
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i put about 150 miles through half tank after fill up. hows that?
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Old 01-24-11, 09:35 PM
 
 
 
 
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