Early M.Y. 200 Series LC vs LX - Which is the better deal now?

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Im not sure who came up with "Lexus recommends". According to my manual it's a requirement not a recommendation. Also, people that say "I've been putting 87 on my LX for over 100k miles and haven't had any problems." Sure you haven't had any problems because that's why knock sensors are there for, but this doesn't mean that your engine is running at peak performance or is in top shape. Engines loose power over time but those engines running on 87 have most likely lost more power from the increased knock events, specially with how conservative Lexus tunes their engines.
 
I just filled up my 2 week old 2013 LX with 52k miles with regular. I noticed that the transmission takes longer to shift to the next gear. It sounded like it is even downshifting. I can feel the slight difference in throttle response that changes the driving experience. So will go back to Premium even though it cost up to a dollar per gallon in my area. YMMV
 
I just filled up my 2 week old 2013 LX with 52k miles with regular. I noticed that the transmission takes longer to shift to the next gear. It sounded like it is even downshifting. I can feel the slight difference in throttle response that changes the driving experience. So will go back to Premium even though it cost up to a dollar per gallon in my area. YMMV

But that not proof it's a different calibration!

What you need is more detergent in higher octane fuel.

(one of these is the real marketing gimmick)

:hillbilly:
 
I just filled up my 2 week old 2013 LX with 52k miles with regular. I noticed that the transmission takes longer to shift to the next gear. It sounded like it is even downshifting. I can feel the slight difference in throttle response that changes the driving experience. So will go back to Premium even though it cost up to a dollar per gallon in my area. YMMV

If you can really feel the difference in your huge V8 between 87/91...then you are more sensitive than a dyno... ;) That small difference isn’t going to change your transmission’s shift points.

In other words...
I’ma go out on a limb and call it the Placebo effect...
 
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I'd say it's amusing to have armchair quarterbacks weigh in on a topic they have no basis of understanding on. Except it's not.

Because what's at stake is not 2 hp.

To an LC, okay believe what you want, there might be a 2hp opportunity.

To an LX, what's at stake is the engine. Feeling stumbles and loss of power is not about 2hp. It's about pre-ignition and detonation.

page 692
"If 91 Octane cannot be obtained, you may use unleaded gasoline with an Octane Rating as low as 87 (research octane number 91). However, use of unleaded fuel with an octane rating lower than 91 may result in engine knocking or drastically reduce output to protect itself while driving a heavy load. Persistent knocking can lead to engine damage and should be corrected by refueling with higher octane unleaded gasoline."
 
I'd say it's amusing to have armchair quarterbacks weigh in on a topic they have no basis of understanding on. Except it's not.

Because what's at stake is not 2 hp.

To an LC, okay believe what you want, there might be a 2hp opportunity.

To an LX, what's at stake is the engine. Feeling stumbles and loss of power is not about 2hp. It's about pre-ignition and detonation.

page 692

IF a LX has a different calibration. You still haven’t shown that it does.
 
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