FJ Cruiser and premium gas ? - Pirate4x4.Com : 4x4 and Off-Road Forum

Reddog · 08-01-2008, 11:45 AM

I've been looking at the FJ Cruiser as a possibility for my next vehicle but the use of premium gas has me wondering.

What's up with that?
With the price of gas these days, what was Toyota thinking?

A friend of mine has one and she says that if you don't use premium it will void the warranty.
Is this true?

BellyDoc · 08-01-2008, 06:32 PM

The FJ Cruiser predates the current rediculous gas prices, but that's not to say that gas wasn't already seemingly expensive when the thing came out in late 06.

Toyota was thinking: Let's make a stylized pseudo-retro SUV based on the Land Cruiser Prado platform and rake in the dough... and they were right.

The reason that 91 octane is specified, per manufacturer's literature, is that the compression ratio is 10:1 and lower octane may cause knocking. The knock sensor would then be forced to adjust for a lower efficiency, affecting horsepower.

The Toyota literature now contains a TSB (Technical Service Bulletin) stating that running regular octane fuel (87) is acceptable. The rated horsepower will not be achieved, but nobody seems to notice, of those I've heard using regular. Warranty is not affected.

sbechtold · 08-01-2008, 06:40 PM

--- Jon beat me to it ---

Premium fuel is recommended, but not required in the FJ - there's actually an official Toyota bulletin that addresses this question. I've run everything in mine and don't notice a difference with the varying grades of fuel.

BellyDoc · 08-01-2008, 08:59 PM

Quote:

Originally Posted by sbechtold

--- Jon beat me to it ---

Premium fuel is recommended, but not required in the FJ - there's actually an official Toyota bulletin that addresses this question. I've run everything in mine and don't notice a difference with the varying grades of fuel.

I considered trying to run mine on pure ethanol... but I started "sampling" the fuel on the way out to the driveway. I didn't make it all the way to the door.

Should I post excerpts from the blue forum on "water 4 gas" ?

RTrac1 · 08-01-2008, 09:06 PM

I got better mileage running super. around 2 mpg better back when it had the 33s and armor on it. that 2 mpg and the price difference at the time made running super a better value.

now, the difference isnt so much. Im not sure if its because i get way better mileage with the stock tires and lost the weight of armor/bumper, or if its because of the 10% ethenol fuel i get here.

sbechtold · 08-01-2008, 09:25 PM

Quote:

Originally Posted by BellyDoc

Should I post excerpts from the blue forum on "water 4 gas" ?

That thread is priceless...

monniepoo · 09-15-2008, 08:43 PM

I drive like a freak... I get shitty gas mileage with whatever I use... So i put Super

zuluzeugma · 09-19-2008, 10:39 AM

Quote:

Originally Posted by monniepoo

I drive like a freak... I get shitty gas mileage with whatever I use... So i put Super

show us your boobs...

I have used everything and have not noticed a difference in HP, but I don't drive like im 16 either...

08-01-2008, 11:45 AM	#1 (permalink)
Reddog Registered User Join Date: Feb 2000 Member # 25 Location: 3rd rock from the sun Posts: 2,376	FJ Cruiser and premium gas ? I've been looking at the FJ Cruiser as a possibility for my next vehicle but the use of premium gas has me wondering. What's up with that? With the price of gas these days, what was Toyota thinking? A friend of mine has one and she says that if you don't use premium it will void the warranty. Is this true? __________________ [url]http://profile.myspace.com/index.cfm?fuseaction=user.viewprofile&friendid=151481375[/url] [SIZE="4"][COLOR="Red"]N C R D[/COLOR][/SIZE] Chevy Pickup, lifted, modified V8, dual transfer case, lockers, big tires and BIG BALLS !

08-01-2008, 06:32 PM	#2 (permalink)
BellyDoc Rock God Join Date: Sep 2007 Member # 100273 Location: Phoenix, AZ Posts: 1,150	The FJ Cruiser predates the current rediculous gas prices, but that's not to say that gas wasn't already seemingly expensive when the thing came out in late 06. Toyota was thinking: Let's make a stylized pseudo-retro SUV based on the Land Cruiser Prado platform and rake in the dough... and they were right. The reason that 91 octane is specified, per manufacturer's literature, is that the compression ratio is 10:1 and lower octane may cause knocking. The knock sensor would then be forced to adjust for a lower efficiency, affecting horsepower. The Toyota literature now contains a TSB (Technical Service Bulletin) stating that running regular octane fuel (87) is acceptable. The rated horsepower will not be achieved, but nobody seems to notice, of those I've heard using regular. Warranty is not affected. __________________ -Jon- MFS/Pirate4x4 essay contest winner KOH 2010 survivor Surgical precision with a BFH

08-01-2008, 06:40 PM	#3 (permalink)
sbechtold Registered User Join Date: Dec 2006 Member # 84124 Location: California Posts: 151	--- Jon beat me to it --- Premium fuel is recommended, but not required in the FJ - there's actually an official Toyota bulletin that addresses this question. I've run everything in mine and don't notice a difference with the varying grades of fuel. Last edited by sbechtold; 08-01-2008 at 06:42 PM.

08-01-2008, 09:06 PM	#5 (permalink)
RTrac1 Registered User Join Date: Sep 2007 Member # 99158 Location: Schenectady, NY Posts: 425	I got better mileage running super. around 2 mpg better back when it had the 33s and armor on it. that 2 mpg and the price difference at the time made running super a better value. now, the difference isnt so much. Im not sure if its because i get way better mileage with the stock tires and lost the weight of armor/bumper, or if its because of the 10% ethenol fuel i get here. __________________ -Rob Tracey [url]www.leded.com[/url][URL="www.toyotacrawlers.com"] Northeast Toyota Crawlers[/URL] [url]www.rok-freekz.com[/url] 88 Zuk - [url=http://www.pirate4x4.com/forum/showthread.php?t=765704]Build Thread..[/url] [url=http://www.pirate4x4.com/forum/showthread.php?t=1004552]ZUK FOR SALE...[/url]

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09-15-2008, 08:43 PM	#7 (permalink)
monniepoo Registered User Join Date: Dec 2007 Member # 103968 Location: UPLAND Posts: 24	I drive like a freak... I get shitty gas mileage with whatever I use... So i put Super