Montero Build

FurthurOnTheFly

Glamping Society
OK, this is weird, but the owners manual says to run 87 or higher octane in the truck, and the fuel door says that premium is "recommended". Having fun with it, I have now run 6 tanks; 3 87 and 3 91 and monitored them closely. Running 91 I have been averaging 16.7 MPG mixed driving (mostly highway though), and with 87 I have been averaging 18.2 MPG with the same mixed driving and there is no difference in engine performance. I think I'm going to stick with 87 as it is producing better results for less money. On a side note, the trip to Prescott I averaged 14.3 on a mixed tank of 87 and 91 and averaged 14.2 MPG. But, we were loaded with gear, driving up the hills, did about 40 or so miles in 4wd and drove from Chino Valley to the camp with the tires at 20psi.

Oh, and I have a bit of a heavy foot.

Its funny you mention this because I noticed the exact same thing today on the 4Runner! The last 3 tanks have been 91 and I've been getting about 16.9 per tank...this current tank was back to 87 and with less than a quarter left I'm still at 19.3!
 

J-man

Adventurer
thats cause higher octane is less explosive - thus a vehicle not designed to run 91 will use more gas as the computer will dump more fuel to make it run.
 

off-roader

Expedition Leader
OK, this is weird, but the owners manual says to run 87 or higher octane in the truck, and the fuel door says that premium is "recommended". Having fun with it, I have now run 6 tanks; 3 87 and 3 91 and monitored them closely. Running 91 I have been averaging 16.7 MPG mixed driving (mostly highway though), and with 87 I have been averaging 18.2 MPG with the same mixed driving and there is no difference in engine performance. I think I'm going to stick with 87 as it is producing better results for less money. On a side note, the trip to Prescott I averaged 14.3 on a mixed tank of 87 and 91 and averaged 14.2 MPG. But, we were loaded with gear, driving up the hills, did about 40 or so miles in 4wd and drove from Chino Valley to the camp with the tires at 20psi.

Oh, and I have a bit of a heavy foot.

I'm not that familiar with the newer models. Did it come with different engines? Is the owners manual for all those engines? It may be you're reading the section for the engine that doesn't require 91 octane.

I know with the 96SR's 3.5L DOHC engine I have to use 91 octane but the 3.0L SOHC engine only requires 87 octane.
 

datrupr

Expedition Leader
No, only the one engine for the Gen III's, the 3.5. Different trannies and gearing between the XLS and Limited models though, but the same engine.
 

datrupr

Expedition Leader
yup, just like it says in the manual and on the fuel door. HaHa. Thanks for looking into that.
 

datrupr

Expedition Leader
I just have to comment on an impression that I am having with this truck. First, I really like driving it, and really like the smooth ride and very high seating position. It is really hard getting into the Nissan every morning to take it to work. But a feature of this truck that I am growing to really like is the speed sensitive power steering. At low speeds the steering is very loose and very easy to turn, but it really firms up at higher speeds and becomes very responsive. I like that.
 

Justice R

Adventurer
We just picked up an 02 XLS. I'm really taking a liking to it as well. Its the wifes daily driver. I've considered selling my 95 and picking up another gen 3.
 

datrupr

Expedition Leader
We just picked up an 02 XLS. I'm really taking a liking to it as well. Its the wifes daily driver. I've considered selling my 95 and picking up another gen 3.

I think you should keep the 95 and just add another gen III. The third Gen's still are not as capable as your SR would be. But, it is probably much nicer to drive on a regular basis.
 

datrupr

Expedition Leader
10% off is super tempting. I can't let the cat out of the bag just yet, but lets just say that the stars are aligning for me at this particular time. :victory:
 

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