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Engine & DrivetrainDiscussions about the engine and drivetrain of your vehicle.
This is a discussion thread titled "What octane gas do you pump?", within the Engine & Drivetrain forum, part of the Technical & Vehicle Assistance Forums category.
I am a member of This Week in Petroleum and it lists the avg weekly $$$ by location and the formulation as well.
Just because you are in a region that does not require oxygenated gasoline does not mean that the fuel you buy is is not oxygenated. Lots of refiners use MTBE (unless you are in a MTBE-banned region) for octane even in regions that don't require oxygenated fuels... especially since MTBE prices have plummeted relative to other octane components in the last couple of years. Refiners aren't stupid, they use what's cheapest.
Just because you are in a region that does not require oxygenated gasoline does not mean that the fuel you buy is is not oxygenated. Lots of refiners use MTBE (unless you are in a MTBE-banned region) for octane even in regions that don't require oxygenated fuels... especially since MTBE prices have plummeted relative to other octane components in the last couple of years. Refiners aren't stupid, they use what's cheapest.
I know the RFG is not distributed in the mid/south GA area... only north GA (Atlanta area) and the gas I use most likely has MTBE as the octane control componet. I also know I live in an area that does NOT have emissions checks.
All said and done, chances are it is not oxygenated but does containe MTBE.
SCDTRD
__________________ The Beast: 1994 Toyota Camry V6 XLE
The Mods:
Front tower Ractive Strut Bar, Whiteline rear AntiSway Bar, Rage Breaker 17.5x7 Rims and Falken Ziex 512 rubber, Limo Tint, Pioneer DEH 7700MP Head Unit, Polk 6x9 rear and Polk 6.5 Front speakers, Tokico struts front and rear, Carbon kevlar brake pads, Cryo treated rotors, ZEX 82021 N2O system, Polished and ported upper and lower intake runners, shift kit, and more to come.....and.... YES... it is a CAMRY....
All said and done, chances are it is not oxygenated but does containe MTBE.
If your fuel contains MTBE, it's been oxygenated. MTBE is an acronym for Methyl Tertiary Butyl Ether and all ethers have at least one oxygen atom linking the hydrocarbon parts...that's what makes them an ether. Here in Colorado, gasoline in the Front Range counties has long been required to be oxygenated during the winter months...until the past couple of years the refiners could (and did) use MTBE to meet that oxygenation requirement.
If your fuel contains MTBE, it's been oxygenated. MTBE is an acronym for Methyl Tertiary Butyl Ether and all ethers have at least one oxygen atom linking the hydrocarbon parts...that's what makes them an ether. Here in Colorado, gasoline in the Front Range counties has long been required to be oxygenated during the winter months...until the past couple of years the refiners could (and did) use MTBE to meet that oxygenation requirement.
In case you're wondering, yeah, I have a MS in Organic Chemistry.
Oh well... I don't and it shows!
SCDTRD
__________________ The Beast: 1994 Toyota Camry V6 XLE
The Mods:
Front tower Ractive Strut Bar, Whiteline rear AntiSway Bar, Rage Breaker 17.5x7 Rims and Falken Ziex 512 rubber, Limo Tint, Pioneer DEH 7700MP Head Unit, Polk 6x9 rear and Polk 6.5 Front speakers, Tokico struts front and rear, Carbon kevlar brake pads, Cryo treated rotors, ZEX 82021 N2O system, Polished and ported upper and lower intake runners, shift kit, and more to come.....and.... YES... it is a CAMRY....
OXYGENATED FUEL STINKS!!!!!!!It may burn cleaner but you use more of it, and has a tendancy to ping more, when really hot outside.(over 110)
I use 91 most of the time but sometimes I use 100 when i feel generous to myself.
__________________ 2002 TUNDRA AC 2WD = NOT STOCK
MODS: TRD LSD w/4.88's| TRD Headers | Flowmaster 50 Series SUV | TRD Supercharger | Hellwig Rear Sway Bar (custom end links) | TOYOTA Power Antenna | Rear "AIR RIDE" w/ on board compressor | De-badged | Raybrig Headlights & Nokya yellow Foglights | Keyless Upgrade to Full Alarm | Toyota Air Filter | Horn Mod | Map Light Mod | Back Seat Mod | STUBBS Sliders | AXIS Wheels w/315/75-16 Yokohama Geolander MT + | Home Link | SUPERLIFT Tru-speed-speedo Recalibrator | McKesh Mirrors l 3" Body Lift w/Poly Body Mounts l Gap Gaurds l Stainless Brake Lines l Poly Sway Bar Bushings l Poly Rear Leaf Spring Bushings l Clear/Red/Clear Tailights l Black Corners & Headlight Assy's l Diff breather Mod l Nu-Image Blue Flame Gauges l Eclipse AVN5435 w/ Rev Cam & 8 disk changer l Custom rear roll pan w/lights l RCD 6" lift w/ 3" blocks and AAL l Camburg UCA's l High Lift Jack l Daystar Front & Rear Bumpers l 4 Hella Black Magic Lights l Budbuilt Trac Bar l ICOM 706 MKIIG l Doran tire pressure sensors
23 yrs with TOYOTA
MDT/Shop Foreman/FINDLAY TOYOTA
ASE Certified Master Automotive Technician
Official Pro Comp Certified Installer & Dealer
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Ham Radio Operator = KE7WLF
I run 87 octane gas in my 2003 Tundra. I buy it from either the Esso station in town or at Canadian Tire in the next town over up from me (nice to always get those Canadian Tire dollars when I fill up so I can buy merchandise without paying so much for it!)
If your fuel contains MTBE, it's been oxygenated. MTBE is an acronym for Methyl Tertiary Butyl Ether and all ethers have at least one oxygen atom linking the hydrocarbon parts...that's what makes them an ether. Here in Colorado, gasoline in the Front Range counties has long been required to be oxygenated during the winter months...until the past couple of years the refiners could (and did) use MTBE to meet that oxygenation requirement.
In case you're wondering, yeah, I have a MS in Organic Chemistry.
Nice dissertation. Your treatment on the subject is concise, yet thorough. However, my organic compound of choice is ETOH. But I never add it to my vehicle's fuel.
__________________
1999 F150>>2000 Tundra SR5 AC>>2003 F250 CC Diesel>>Back home to 04 Tundra SR5 AC
_____________________ Mods to date: Kenwood HU & pwrd. sub/ KW spkrs X4/ KW 200W stereo amp/ undercab 55w lights/ maplights/ constant-on pwr. outlets/Flowmaster twin 40s out the rear, ss resonator tips/ KMC Enduro wheels wrapped in OEM Dunlops/ Mostly de-badged/ Clear corners/ Low-$ seat covers with TUNDRA monogram/ Griot's treatment/ Hellwig rear anti-sway/ Prodigy brake controller/ Line-X bed, bumper & door sills/ Nat. White matched BSM / JBA HEADERS BABY!!!
_____________________ Mods to come: The next impulse that doesn't exceed available cash!!!
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