Using 91 Octane on mine...
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Mr. Medic and I definately notice a performance difference when we get "crappy" gas. So much so that hubby (when home) often puts an octane booster in the tank with each fill up, and I have taken to doing the same.
I went about six fill ups without it (out of laziness and never picking any up)while he was gone, and it seemed to be "running hard". When he came home on R&R, the first thing he did was throw in an octane booster, and she ran much, much better and quieter. The difference is literally audible. We have ALWAYS used the "premium" top grade fuel, but as you probably know the quality of so called premium fuel varies from gas station to gas station. It works my nerves that we end up adding that booster to what is supposed to be the best fuel, but it is what it is.
(Side note: I was livid after we bought the thing for that reason ONLY. We didn't ever think to look inside the gas cap when we test drove it and bought it. Two days later, when he went to fill up, I heard my husband yell *&$#@%*&!!!! when he discovered the words "Premium fuel only" inside the cover)
I try to justify it by telling myself that if we can afford the FJ, we can afford to fuel it properly, but at this point, I've considered selling our oldest to the circus to offset the price of gas.
I went about six fill ups without it (out of laziness and never picking any up)while he was gone, and it seemed to be "running hard". When he came home on R&R, the first thing he did was throw in an octane booster, and she ran much, much better and quieter. The difference is literally audible. We have ALWAYS used the "premium" top grade fuel, but as you probably know the quality of so called premium fuel varies from gas station to gas station. It works my nerves that we end up adding that booster to what is supposed to be the best fuel, but it is what it is.
(Side note: I was livid after we bought the thing for that reason ONLY. We didn't ever think to look inside the gas cap when we test drove it and bought it. Two days later, when he went to fill up, I heard my husband yell *&$#@%*&!!!! when he discovered the words "Premium fuel only" inside the cover)
I try to justify it by telling myself that if we can afford the FJ, we can afford to fuel it properly, but at this point, I've considered selling our oldest to the circus to offset the price of gas.
There are conflicting stories regarding a lot of things, it's up to us to look things over with a discerning eye.
Remember, most of the advice you get on an internet forum is worth exactly what it cost you.
Remember, most of the advice you get on an internet forum is worth exactly what it cost you.
93 Exxon or Shell since day one and not planning to change that. I did try regular, truck definitely didn`t like it. Maybe with 6MT difference is more pronounced, i don`t know
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