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In the 2006 or 2007 models I'm sure 87 octane is OK in the 4 cyl engines. What about the 6 cyl engines? Can we use 87 or do we need to use higher octane?
I have the 07' V6 and the dealership advised me and said to always use 91 and higher since it is a new designed engine and 87 would harm the engine
i am just curious if the dealership bullsh!t with you about 87 octane will harm the new designed 07 v6 engine or they have scientific data of proof.
i am sure toyota engineers are smart enough to make 07 v6 run on octane 87 by adjust the timing, and knowing there is always a chance new 07 v6 owner will refill with 87 octane.
and i am sure it will make your heart feel better if you know you have treated your new vehicle with the most expensive gas at the gas station psychologically.
87 will work in V6 engines, but the engine will function better with 91.
The engine has knock sensors that retard timing to prevent detonation when using 87.
This is only true if it is detonating on 87 octane! If it is not then the knock sensors will do nothing. They will not advance the timing on anything higher.
I would run whatever the manual recomends as long as you don't have any problems!
Gary
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Don't worry about what other people think....as most of them don't!
Funny you brought this one up, I am pissed off on this one and may not have bought my camry had I know this. If you run 87 the timing with retard and you will get only 192 HP instead of the 210 you get with 91. This is for my 03 Camry with V6 VVTI engine. I ran 87 a month after I bought, good gas from Chevron, and the acceleration decrease was noticeable off the line. Thank god for Costco and Sam's gas using 91. If someone can convince me otherwsie please do, I don't like being held hostage to using 91, this is BS, and false advertising on Toyota's part telling a potential owner their new car has 210 HP instead of the old 192HP.
Go ahead to use higher one. I like 87 with my 2005 and it works very well. maybe cannot afford the expensive one. Now oil and gas is skyrocketting. If you use 91 then back to 87, you will notice the difference, because it will need the higher and higher. Do ot make it ADDICTED.
In australia, 91 octane is the lowest you can buy. My 94 V6 runs fine on this but runs 100% better on 98 Octane (Premium, Optimax, Ultimate etc.)
My manual says minimum 91 octane. Remember though, in Japan (where the engines were designed) their premium is 101 octane fuel and their normal is around 95-98.
If you can afford the higher octane, use it. The engine response and smooth power accross the rev range is worth it.
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True car enthusiasts are open-minded to everyone's creation
what people don't seem to get, and this drives me NUTS, is that octane is a measurement of how prone gas is to combusting before your engine wants it to combust.
The higher the octane, the more stable the gas is in the engine. From what I know, 87 can't be compressed too much or ur engine knocks. 94 can take a lot of compression before igniting on its own due to the increase in pressure.
Spending mountains of money putting higher octane in ur gastank when you don't need it, is simply foolish. Your engine doesn't burn cleaner nor do you get better gas mileage if your engine wasn't designed to use the premium gas. I'm sure Toyota is smart enough to make all their engines run on the worst grade of gas simply because gas companies charge outrageous prices for premium unleaded.
An engine designed for 87 octane will compress the air/fuel mixture to a point that will prevent 87 octane from knocking. 94 is simply overkill...
Special driving conditions such as high altitudes may require higher octane but for Sea Level driving, what Toyota recommends is right and anymore and you're throwing your money out the window. Save the money and spend it on rebuilding your engine. New piston rings and carbonless engine are a better way to use ur cash.
Sorry my Canadian friend, but you are wrong. I have tested it myself. You run 87 in a V6 VVTI engine and you just lost alot of horsepower. Otherwise you run 91 and get 210 HP It goes from 210 to 192 instantly. Secondly, and I know because I live in Denver at high altitude, that you can go lower on octane because of altitude not higher. I run 85 in my 96 corolla and it runs fine. Most people here run 85. I simply keep using 91 instead of 87, mid grade for high altitude, because 91 costs the same as 87 because I get my gas at Costco or Sams. It even says in the manual, for improved performance run premium grade gasoline or something like that.
AHHHHH.. THE AGE OLD OCTANE WAR.............. LET ME PUT IN MY TWO CENTS...
Experience:
My 300k mile 1988 Toyota Camry ran better with 93 octane... whenever I decided to use 87 octane it would start knocking and I observed considerable loss of power... so I went back to 93 again... I tried very hard to get back to 87 but the car wouldn't let me....
NOW:
Now i have different cars, I always use 87 octane from the first day I bought them. I am afraid that if I put in 93, my car may get used to it and may never like 87......... SOUNDS SILLY DOESN'T IT..............??
Anyway, I have done so much research on this. End line is.. My cars drive fine with 87 so I use 87.. If I ever get the money to use 93 octane... I MAY use it considering the experience I had with my very old car with very high miles.... I could tell that the car knew every time I gave it 87 octane and badly protested.... who can explain this?
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