Merged premium fuel threads - is higher than 87 Octane needed or useful?
02-21-24, 02:57 PM
#107
I get Shell 90 only because its non ethanol. I work form home and don't drive much so I dont want it sitting with ethanol. Only 1 other place ...walmart near me has non ethanol in 93.
02-22-24, 02:20 PM
#108
Pole Position
I wonder if this is true of Shell and Walmart gas sold in California? I agree that non-ethanol gas is a better choice for any car, especially one that sits.
02-22-24, 03:18 PM
#109
That said, there's still a few places in California where you can buy non-ethanol blended gasoline. For locations, see pure-gas.org- The definitive list of stations that sell ethanol-free gasoline in the U.S. and Canada! and select the "CA" tab. (Here's a direct link to a CA pure-gas locations map .)
02-22-24, 07:04 PM
#110
I think Top Tier gas stations are the only places to buy fuel that can be trusted. Walmart - or Murphy - used to be my go to station on road trips to destinations we frequent but no more. They are cheap for a reason - cheap fuel that can't be trusted. Shell is a Top Tier gas station.
02-22-24, 07:43 PM
#111
Lexus Test Driver
I think Top Tier gas stations are the only places to buy fuel that can be trusted. Walmart - or Murphy - used to be my go to station on road trips to destinations we frequent but no more. They are cheap for a reason - cheap fuel that can't be trusted. Shell is a Top Tier gas station.
02-23-24, 07:54 AM
#113
In most cases there's no issues if the car sits for less than 3 months, but with the humidity in Florida even though my car is garage kept and how I don't drive much (I still drive weekly) I think non ethanol is worth it for me since I can actually get it.
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Wilson2000 (02-28-24)
02-23-24, 09:39 AM
#114
02-23-24, 11:59 AM
#115
Ethanol based gas easily absorbs moisture, which can lead to contamination. It can also dry out rubber components.
In most cases there's no issues if the car sits for less than 3 months, but with the humidity in Florida even though my car is garage kept and how I don't drive much (I still drive weekly) I think non ethanol is worth it for me since I can actually get it.
In most cases there's no issues if the car sits for less than 3 months, but with the humidity in Florida even though my car is garage kept and how I don't drive much (I still drive weekly) I think non ethanol is worth it for me since I can actually get it.
We cannot get it here in MA. I just bought Stabil to add to my fuel.
Thanks for the tip.
02-23-24, 07:10 PM
#116
02-24-24, 05:48 AM
#118
02-24-24, 05:51 AM
#119
This whole thread has a lot of the no difference, narrative. There lots of misunderstanding of the effects of higher Octane 93 fuels and the effects on Lexus ECU mapping, that controls your Lexus fuel/air, Timing, and other, based on the readings the ECU is seeing from many engine sensors including in the combustion chamber and engine temps to name a few.
93 Shell will have you engine perform different than cheap 87 fuel. You may not be able to feel it, but it does. To cost justify the cost difference is one thing, or feeling if it is worth or or not. Some fuels will also affect the long term condition performance of the internals of the engine also, like excess deposits, and carbon build up. There is actual test data that shows all this to be true. Until you monitor live engine data or do other testing, one would certainly not know any difference. The Toy/Lex 2GR-FKS is not just used in the 19+ ES350 only. It's used in many other Toy/Lex Models for a while.
93 Shell will have you engine perform different than cheap 87 fuel. You may not be able to feel it, but it does. To cost justify the cost difference is one thing, or feeling if it is worth or or not. Some fuels will also affect the long term condition performance of the internals of the engine also, like excess deposits, and carbon build up. There is actual test data that shows all this to be true. Until you monitor live engine data or do other testing, one would certainly not know any difference. The Toy/Lex 2GR-FKS is not just used in the 19+ ES350 only. It's used in many other Toy/Lex Models for a while.
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FastDawg (02-24-24)
02-24-24, 06:00 AM
#120
This whole thread has a lot of the no difference, narrative. There lots of misunderstanding of the effects of higher Octane 93 fuels and the effects on Lexus ECU mapping, that controls your Lexus fuel/air, Timing, and other, based on the readings the ECU is seeing from many engine sensors including in the combustion chamber and engine temps to name a few.
93 Shell will have you engine perform different than cheap 87 fuel. You may not be able to feel it, but it does. To cost justify the cost difference is one thing, or feeling if it is worth or or not. Some fuels will also affect the long term condition performance of the internals of the engine also, like excess deposits, and carbon build up. There is actual test data that shows all this to be true. Until you monitor live engine data or do other testing, one would certainly not know any difference. The Toy/Lex 2GR-FKS is not just used in the 19+ ES350 only. It's used in many other Toy/Lex Models for a while.
93 Shell will have you engine perform different than cheap 87 fuel. You may not be able to feel it, but it does. To cost justify the cost difference is one thing, or feeling if it is worth or or not. Some fuels will also affect the long term condition performance of the internals of the engine also, like excess deposits, and carbon build up. There is actual test data that shows all this to be true. Until you monitor live engine data or do other testing, one would certainly not know any difference. The Toy/Lex 2GR-FKS is not just used in the 19+ ES350 only. It's used in many other Toy/Lex Models for a while.
The following users liked this post:
FastDawg (02-24-24)