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As gas prices rise, will you deviate from Premium?

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As gas prices rise, will you deviate from Premium?

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Old 06-01-18, 12:21 PM
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jrmckinley
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Default As gas prices rise, will you deviate from Premium?

Just curious- Gas in certain markets in FL is approaching $4/gallon for Premium- Regular (87) is around $3.29 and Mid (89) is around $3.49. I've never deviated from Premium but wondering what others think.
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Old 06-01-18, 03:27 PM
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difference between premium and regular is 70c/ga (that's if someone is crazy enough to put 87 in the LX).

assume someone drives 12k miles a year in the LX, and gas mileage of 13mpg. i round it up and that means total cost difference of about $650.

that on a $90-100k car and total gas cost of $3700, sounds pretty insignificant for any owner to worry about
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Old 06-01-18, 03:53 PM
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Premium is $4.12 at my local station (WA). Given the limited amount I drive, not enough to switch.
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Old 06-01-18, 04:40 PM
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My favorite topic again? :-D
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Old 06-01-18, 06:16 PM
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I have seen so many discussions on this topic in both LX and GX forum. Never in the past wanted to inject my 2 cents and felt this is not really a topic that will offer much of benefits to anyone. But seeing this topic in LX forum over and over, I felt it is almost obligated to say something, and what I am about to say is just my personal opinion on this subject, no meaning to offend anyone. If anyone felt been offended, let me offer my sincere advanced apology first.

First of all, it is your vehicle and you are entitled to do whatever you would like to do! Manufacturer do put out the specs for the reason. Whatever the value those specs mean to you is also entirely up to your own value system. We all know technology today has been advanced to the point will make the best decision in terms how drivetrain performance the best. I have no doubt that either 87 or 91 or 93 or even 100 aviation fuel will run the engine without you notice any difference. But, for anyone who decided to buy a nearly $100K luxury full size SUV as Lexus LX570, shouldn't even consider which grade of gas to put in due to the difference of the costs. If the costs of gas is a such priority to you, then this is certain a wrong vehicle for you, period!
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Old 06-01-18, 07:36 PM
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Originally Posted by hzhao View Post
But, for anyone who decided to buy a nearly $100K luxury full size SUV as Lexus LX570, shouldn't even consider which grade of gas to put in due to the difference of the costs. If the costs of gas is a such priority to you, then this is certain a wrong vehicle for you, period!
It's not so much about money. Maybe many users feel bad that they pay more just because Lexus decided to require premium in LX 570 for marketing purposes. Based on all available data (including ih8mud forum), 5.7 V8 in LX is absolutely identical engine to 5.7 V8 in Land Cruiser (which does not require premium fuel).
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Old 06-02-18, 05:10 AM
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Originally Posted by ClaytonW View Post
It's not so much about money. Maybe many users feel bad that they pay more just because Lexus decided to require premium in LX 570 for marketing purposes. Based on all available data (including ih8mud forum), 5.7 V8 in LX is absolutely identical engine to 5.7 V8 in Land Cruiser (which does not require premium fuel).
Agree - I wasn't offended at all by the prior post - but Clayton's reply is somewhat the heart of the question. I've owned an LS400, LS430, GX470, currently own an LS460, along with also currently owning an LX570. I have only NOT put premium in any vehicle on a total of 3 occasions in the 12 years of ownership of Lexus products. All 3 occasions were last summer when we evacuated for Irma and gas was only available in 87.

I personally won't switch from premium, although I personally believe it would make no difference given it's the same engine as the LandCruiser. It's more of a mental dilemma that makes me question myself a bit when the delta between premium and regular is currently around $.70 when it's typically half that (or less). When the delta is this large and I know it's the identical engine to the LandCruiser, it does make me wonder if I'm being foolish.

Sorry if I resurrected a topic that has been discussed ad nauseam - wasn't my intention.
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Old 06-02-18, 09:12 PM
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Already made the switch a year ago, because premium is about 70 cents a gallon higher here, at 13mpg, probably saved about $800-1000 so far.

What helped for me was a report on this forum (it's the 5+ page thread) where someone reported over 100,000 miles so far on regular with no problems.
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Old 06-02-18, 10:07 PM
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BTW, there is a similar thread on GX forum. I would bet that it will be similar to old threads. People on GX will mostly conclude that premium is necessary. We (LX owners) will conclude that regular is probably fine :-)
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Old 06-03-18, 05:51 AM
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My wife drives the LX and I drive a 2017 Toyota Tundra for work. I asked the Lexus technician why one wants premium and the other doesnít. He said, look at the emblem on the hood. Thatís the only reason. The engine in my Tundra and the engine in the LX are exactly the same. The technician said if you like throwing money away, keep using premium. Iíve had two Tundras before this latest one and put over 250,000 miles on each one. I never had one issue with either one. Regular oil changes, tires and brakes is all those trucks ever needed. They ran just as good with 250,000 miles on them as the first day I bought them.
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Old 06-03-18, 02:03 PM
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Originally Posted by ClaytonW View Post
It's not so much about money. Maybe many users feel bad that they pay more just because Lexus decided to require premium in LX 570 for marketing purposes. Based on all available data (including ih8mud forum), 5.7 V8 in LX is absolutely identical engine to 5.7 V8 in Land Cruiser (which does not require premium fuel).
And this is just internet gossip until you can provide some form of documentation, other than the mud forum, that this is true. You have no way of knowing that I can think of what is in the computer code for either of the vehicles.
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Old 06-03-18, 02:04 PM
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Originally Posted by Chocolate View Post
Already made the switch a year ago, because premium is about 70 cents a gallon higher here, at 13mpg, probably saved about $800-1000 so far.

What helped for me was a report on this forum (it's the 5+ page thread) where someone reported over 100,000 miles so far on regular with no problems.
And I just traded at 127,000 miles with no problems using premium. So, how is that evidence of anything except my decision to follow the manufacturer's recommendation?
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Old 06-03-18, 04:21 PM
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We will never know the truth. If Lexus admitted, that the engines are the same including the software, they would be in a risk of a class lawsuit.
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Old 06-03-18, 04:29 PM
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I use gasoline with ethanol. I add bourbon.
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Old 06-03-18, 04:32 PM
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Originally Posted by REDHORSE View Post
And I just traded at 127,000 miles with no problems using premium. So, how is that evidence of anything except my decision to follow the manufacturer's recommendation?
It's just anecdotal evidence. Some have been posturing that there could be wear issues, but there's a report of 100k+ miles on regular on a 200 LX and another person reported over 230k miles on 87 octane on a 100 series LX that also stated premium required.
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