I think that's right, but I've heard the elevation where it

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Apr 2, 2014
3:01:52pm

Pasadena

matters is around 5,000 feet and above. Meaning above 5000 you could consider dropping to a lower octane fuel.

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Pasadena

Bio page: Pasadena
Joined: Aug 21, 2007
Last login: Jan 7, 2025
Total posts: 12,596 (181 FO)

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Messages

Author

Time

Car guys. How important or necessary is it to use high octane gas in a Lexus IS

Hank Rearden

4/2/14 2:47pm

Use the 85 and let us know how it goes

Tokolosh

4/2/14 2:52pm

Although at higher altitudes you can get away with lower

cracka

4/2/14 2:57pm

Right, but stick with the "names" regular, mid-grade, premium and you'll be good

Tokolosh

4/2/14 2:59pm

Correct. Regular at sea-level is like 87 and up here in the mountains its 85.

supertux

4/2/14 3:12pm

Shouldn't be a problem in a lower end performance vehicle like that.

BlueFrog

4/2/14 2:52pm

Surely wouldn't call it a performance car

Hank Rearden

4/2/14 3:09pm

It's important and necessary in my opinion if called for

Pasadena

4/2/14 2:53pm

Course doesn't it change with your elevation (as far as what octate in needed)?

viper

4/2/14 2:55pm

I think that's right, but I've heard the elevation where it

Pasadena

4/2/14 3:01pm

I have heard 5k ft. as well. I live at 6k so I get 85 when my car calls for 87

supertux

4/2/14 3:11pm

Some cars are also adjusted for high elevation.

El Fuego

4/2/14 3:36pm

This is a fail at a humblebrag if I've ever seen one.

Superkid

4/2/14 2:57pm

Really? I thought it was one of the more successful ones I've ever seen.

flavordave

4/2/14 2:58pm

He should be pimping the Mercedes ML. I love mine.

OpusX

4/2/14 3:24pm

My don't use premium in my Phantom and it still runs great.

dryflyelk

4/2/14 2:58pm

my put premium in my car

Superkid

4/2/14 3:00pm

I can't get away with that in my Silver Cloud.

Tokolosh

4/2/14 3:01pm

Yeah, Mine's Just A Fishing Car So I Don't Baby It

TarheeledCoug

4/2/14 3:27pm

Just don't floor it ever and you'll be fine

EvoIXCOUG

4/2/14 3:01pm

With modern engines, you shouldn't hear any pings or knocks if you don't

workindev

4/2/14 3:03pm

Like others have said, high performance engines

EvoIXCOUG

4/2/14 3:08pm

An old thread on octane

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