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Discussion Starter #1
I've read lots of discussions about the 2007-9 vs. the 2010 engine, which is better, which has less torque, which has more hp, and saw this referenced:
From Toyota GR engine - Wikipedia, the free encyclopedia

Does this make sense?
2007-2009 hp/torque figures of 239/278 are using 91 octane.
2007-2009 hp/torque figures are 236/266 when using 87 octane.
2010 figures are 258/270 on 87.
2010 are 270/278 on 91.
So, when using 87 octane the 2010 engine produces more torque as well as more hp.
When using 91, the 2010 produces the same torque and 31 more hp.


I used to run 93 in our '7 FJ and have been putting 87 in our 2011.
I'm wondering if driving over the long, windy mountain interstate grades around here(over 8,000 ft elevation) in 4th using 93 octance will give me more passing power than using the 87...and more power than our '7 in the same situation. Leaving the '7 FJ in 5th(D) caused it to constantly downshift, so I tended to leave it in 4th. I only have 400 miles on the new FJ so my 'butt dyno" answer will have to wait. Anyone have experience with this situation?
 

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My first thought is that they changed the testing method with the newer years numbers on the wikipedia figures
 

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Discussion Starter #3
Thanks Utah07FJ.

No one, running a 2010+ engine, with real world experience as to whether 91 octane gives better performance than 87?
 

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If I remeber correctly with the change for 2010 there was also a program change in the ECU.
 

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I know for my 08 putting in premium gets a little better mpg. I tend to use premium going on road trips where I drive on the I-5 long distances but during my work week I use midgrade, the mpg gain is not worth the extra money spent. And since I'm still under warranty I have some "paranoia."
 
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