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· I do all my own stunts
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565 Posts
I've always run 87 octane, 89 and higher is supposed to run better and might slightly improve mileage, but nothing dramatic. Higher octane helps some engines run better but mine has always run fine on 87.
 

· Registered
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19 Posts
age old question about gas octane... a higher octane does not mean more performance. It just means the gas/air mixture can be compressed higher before it ignites, thus giving more power output. But the engine has to be designed for a higher compression in order to use it. For example, if you used 87 in an engine designed to run (and compress) on 91/93, then you would get pre-detonation and pinging sounds from the engine. stick with 87, unless you want to give more $$$ to oil companies.
 

· Portholes are the Sh!t
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526 Posts
I always use 87 cuz its the cheapest, even in my old '90 V6 LE I put 87 in it even though it recommend higher octane. I look at it this way if 87 octane could really ruin cars then the gas companies couldn't sell the stuff.
 

· self-proclaimed geenyus
2002 Camry
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212 Posts
I used Chevron 93 religiously for a while, then I tried Texaco when they started using techron and it was pretty good.Recently I almost let my car run out of gas and I stopped at a B.P. and i liked it so much I kept using it.93 is less prone to premature detonation and believe me or not,I can hear a difference.
 

· Registered
'07 XLE 4 cyl.
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6,125 Posts
The monthly gas thread...........
 

· ASE Master Technician
2006 Lexus GS430
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2,402 Posts


I only use QT Mid Grade 89 octane.
 

· Registered
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102 Posts
how does QT clean your engine...i wish we had them in FL. I only sitck to B.P. 87. I might use 93 right after an oil change tho.
 

· It's Soo Hoo like Yoo Hoo
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3,233 Posts
i use my own flatulence to power my car. i modified my drivers seat to filter my flatulence into a usable energy source. the passenger and rear seats are backups as they have a holding chamber that collects any flatulence when there is someone present on the seat. its the energy source of tomorrow... today.
 
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