26mpg WOW!!!
05-24-05 | 01:55 PM
#16
Lead Lap
Joined: Nov 2001
Posts: 705
Likes: 2
From: California
Elevation Is The Answer
Those that travel in higher elevations get significantly better gas mileage. It is all done with the computer.
In higher elevations, the O2 sensors detect less oxygen in the atmosphere, so in order to prevent a "RICH" fuel mixture, the sensors cause the computer to "lean" out the mixture at the injectors.
So less gas, less air equals less power, but MORE mileage. This is why lower octane is acceptable in the mountains., but causes a ping at sea level.
In higher elevations, the O2 sensors detect less oxygen in the atmosphere, so in order to prevent a "RICH" fuel mixture, the sensors cause the computer to "lean" out the mixture at the injectors.
So less gas, less air equals less power, but MORE mileage. This is why lower octane is acceptable in the mountains., but causes a ping at sea level.
05-24-05 | 04:40 PM
#17
Driver
Joined: May 2004
Posts: 140
Likes: 0
From: Arizona
Does it cause a ping at sea level? Do you know that for fact? I'm asking because the same year automatic NA supra only uses regular gas. Same engine compression, HP output, TQ, etc..... Whats different? I asked my father this. He's and ASE certified mechanic and he said almost always if the owners manual says something then it's for a reason. Him nore I could come up with why. I don't know.
-Destin
-Destin
05-24-05 | 08:10 PM
#18
Lead Lap
Joined: Apr 2004
Posts: 790
Likes: 0
From: Arizona
Originally Posted by sillbeer
Does it cause a ping at sea level? Do you know that for fact? I'm asking because the same year automatic NA supra only uses regular gas. Same engine compression, HP output, TQ, etc..... Whats different? I asked my father this. He's and ASE certified mechanic and he said almost always if the owners manual says something then it's for a reason. Him nore I could come up with why. I don't know.
-Destin
-Destin
05-28-05 | 12:41 PM
#21
Driver School Candidate
Joined: Feb 2005
Posts: 36
Likes: 0
From: va
Originally Posted by SuprRunner
Well, after driving it for awhile after I got back from my road trip, I now back down to about 20. Still better than my previous 17mpg. I am running a semi synthetic 20-50. I won't run full syntetic, especially with 230,000 miles.
05-28-05 | 12:54 PM
#22
Rookie
Joined: Apr 2005
Posts: 67
Likes: 0
From: MA
Originally Posted by lexus4jess
dead weight on your cars will reduces the mileage.boom box ,amps,rims will give you less mile.
"example" with my stock rims I got about 300 mile.with the 20"rims I had, I got about 220 mile.to the tank.
"example" with my stock rims I got about 300 mile.with the 20"rims I had, I got about 220 mile.to the tank.
05-31-05 | 09:48 AM
#23
Thread Starter
Intermediate
Joined: Apr 2003
Posts: 495
Likes: 5
From: Utah
Originally Posted by LexTE
Off-topic, but I was just wondering how many times have you changed the timing belt? At what mileage did you do so, if you did. 230K miles is awesome. Thanks!
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aznserpent
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